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How to grow bigger buds on cannabis plants

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I’m pretty sure every grower has asked themselves at least once if there’s a way to grow bigger buds on your cannabis plants, and it’s also one of the most common questions we receive at our stores. Today, we’re going to give an extensive answer to this burning question.

There are products known as, among other names, Bloom Boosters, which contain high amounts of PK, giving your plants the perfect amount of potassium and phosphorus that they need during the flowering period.

There are two different type of PK products on the market right now; mineral and organic. Mineral products contain, as you’d expect, mineral salts, whereas organic products are only made out of natural ingredients and contain strictly necessary nutrients.

Using products in order to fatten buds alongside flowering stimulants allows you to increase the size of your plants’ flowers incredibly, which therefore increases the amount of yield you can harvest. Thanks to the potassium and phosphorus, your plants’ buds will also grow much thicker and denser.

We’re going to go through a list of some of the best mineral products for fattening buds, as well as how to grow bigger buds using organic products, discussing how to use them, how they work and what their ingredients are.

Grow Bigger Buds with Chemical Fertilizers

Super Bloom

Super Bloom is a product used to grow bigger buds that guarantees an absolute explosion in your flowers. It’s used towards the end of the flowering period in order to double the size of your plants’ cell walls, which in turn increases the size of their buds.

How to use Super Bloom

This product is incredibly concentrated, so you should only ever use a maximum of around 1ml per liter of water. You should start using it at the start of the fattening period, which is around three-four weeks in; make sure to use Super Bloom every second time you water. The manufacturer recommends using it alongside other base nutrients and flowering stimulants in order to obtain the best possible results. You should stop using it around 15 days before harvesting in order to get any leftover chemicals out of your plants’ systems.

  • Use 0.5-1ml/L of water alongside your usual flowering base fertilizer during the fattening period, from the 3 rd /4 th flowering week onwards.
  • NPK 0-14-15 (p/v 21p/22k)
  • Potassium oxide (k29) 15%
  • Phosphoric Anhydride (P2O5) 14%
  • Algae extract 0.02%
  • Texturizing materials 0.01%

Big Boom PK 52-34

Big Boom PK 52-34 is one of the best PK boosters out there. It contains incredibly high amounts of phosphorus and potassium. It’s 52% P and 34% K. This allows cannabis growers to double the size of their flowers easily.

How to use Big Boom:

This product can be used in three different ways, depending on how experienced you are. The manufacturer recommends increasing the dose depending on how much experience you have growing. This is because larger doses require you to measure the pH and EC levels in your water, which can be complicated.

Beginners should start off with a small 0.3g dose per 10L of water from the third flowering week onwards.
Professionals should start using around 0.2g per 10L of water from the second flowering week, while keep an eye on the pH.
Those that consider themselves to be expert growers should start using 0.5g per 10L from the second flowering week onwards. You’ll be able to make the most out of Big Boom while keeping an eye on your pH and EC. You can even use some Co2 if you have years of experience under your belt.

1. Beginner:

Start using from the third flowering week onwards.

  • 3 rd week: 0.3g/10L
  • 4 th week: 0.8g/10L
  • 5 th week: 1.3g/10L
  • 6 th week: 1.8g/10L
  • 7 th week: 2.3g/10L

2. Professional:

Start using from the second flowering week onwards.

  • 2 nd week 0.2g/10L
  • 3 rd week: 0.5g/10L
  • 4 th week: 1g/10L
  • 5 th week: 1.5g/10L
  • 6 th week: 2g/10L
  • 7 th week: 2.5g/10L

3. Expert:

Start using from the second flowering week onwards.

  • 2 nd week: 0.5g/10L
  • 3 rd week: 1g/10L
  • 4 th week: 1.5g/10L
  • 5 th week: 2g/10L
  • 6 th week: 2.5g/10L
  • 7 th week: 3g/10L
  • 52% dissolvable phosphorus
  • 34% dissolvable potassium

Candy Boom by Boom Nutrients

Candy Boom by Boom Nutrients is one of the latest products that has acquired, and it’s capable of increasing, aroma, flavor and yield from your cannabis plants.

This fertilizer contains sugar beet extract, as well as extracts from natural plants. Of course, it contains potassium and nitrogen, which are easily absorbed by cannabis plants, making for much larger flowers towards the end of the flowering period.

How to use Candy Boom

You’ll need to use this product once a week, making sure to space out the doses with just water. During the third flowering week use 2ml per liter of water, increasing the dose to 5ml during the fifth week.

Candy Boom can be used during the growth period, as long as you use micro-organism products every 15 days. During the growth period use the smaller dose.

For those cannabis growers that are looking for faster results or if their plants are stressed out, Candy Boom can also be used via spraying.

Remember to shake well before use.

  • Use 2ml/L during the 3 rd flowering week.
  • Use 5ml/L during the 5 th flowering week.
  • Nitrogen: 2.7%
  • Potassium oxide: 5.8%
  • Organic material: 34.7%
  • C/N (Organic C & Organic N): 8.1%

Green Sensation by Plagron

Plagron is a Dutch fertilizer brand, and their version of PK is called Green Sensation. This additive is used to produce much more intense flavors and heftier flowers. This product is made from natural extracts that are used in gardening to increase the size of flowers; you’ll notice them getting bigger by the day.

How to use Green Sensation:

In order to use Green Sensation to grow bigger buds, you’ll need to add 1ml per liter of water alongside your flowering base fertilizer from the 4-5 th flowering week onwards. The manufacturer recommends using this product until 15 days before harvesting.

When growing in soil, the manufacturer recommends alternating Green Sensation with just water. For Coco and Hydro set-ups, you’ll need to use 1ml/L, increasing the EC to the right level with the rest of the nutrients you usually use.

  • NPK 0-9-10
  • 9% phosphorus
  • 10% potassium

Phosphorus Plus by Hesi

This mineral fertilizer brand, Hesi, has created Phosphorus Plus, a product designed to grow bigger buds and obtain amazingly thick flowers from your cannabis plants. It gives your plants an extra dose of phosphorus and potassium during the end of the flowering period. This additive should be used alongside Hesi’s flowering complex, which is a complete flowering base that contains the perfect amount of macro and micro-nutrients for cannabis plants.

How to use Phosphorus Plus

In order to use Phosphorus Plus successfully, you’ll need to add 2.5ml per liter of water alongside Hesi’s Flowering Complex during the last stage of the flowering period. The manufacturer also recommends using it alongside SuperVit and Boost by Hesi.

  • Add 2.5ml per liter of water alongside Flowering Complex
  • 7.2% phosphorus
  • 5.1% potassium

Bloombastic by Atami

Bloombastic by Atami is one of the most sought-after bud fatteners on the market thanks to its unique combination of hydrates, sugars and high PK, which gives plants an intense flowering period and an increase in resin and THC. You’ll be able to see visible results after just two doses.

How to use Bloombastic

In order to use it correctly, add from 0.5 to 1ml per liter of water from the fourth flowering week onwards until the end of the process. The manufacturer recommends not going over the recommended dose, and using it twice a week at most.

  • Add 0.5-1ml per liter of water during the second flowering period from the 4 th week until the last week.
  • NPK: 0-14-15
  • Phosphorus pentoxide (P2o5): 14.00%
  • Potassium oxide (K20): 14.50%
  • Iron (Fe): 0.950%

Monster Bloom by Grotek

Monster Bloom has a 50/30 PK, giving your plants plenty of necessary nutrients for their last flowering stage. This product is perfect for fattening buds, and you can use it alongside Heavy Bud Pro in order to increase the weight of your flowers, making them much denser and more compact. This makes it one of the best choices when it comes to bud fattening in cannabis plants.

How to use Monster Bloom:
  • Add 0.3ml once a week per liter of water during your plants’ bud-fattening period. The manufacturer doesn’t recommend going over the recommended dose, as you may over-feed your plant.
  • Add 0.3g/L during the fattening period from the 4th/5th week onwards.
  • 50% phosphorus
  • 30% potassium

Shooting Powder by House & Garden

Shooting Powder is a flowering stimulant and an incredibly potent fattener for cannabis plants. This powdered product can be used on all types of grows by simply adding it to your water towards the end of the flowering period.

How to use Shooting Powder:

This product is used once a week, on healthy plants – once during the three flowering weeks before you flush your plants’ roots. The manufacturer recommends not going over the recommended dose, and keeping an eye on your pH and EC. They also make a point to state that you shouldn’t mix this product with any other PK products.

  • First dose: 0.65-0.70g/L of water
  • Second dose: 1.2-1.3g/L of water
  • Third dose: 1.2-1.3g/L of water
  • Phosphorus: 39%
  • Potassium: 25%
  • Co2

PK Warrior 9/18 by Shogun Fertilisers

Shogun Fertilisers has a specific 9/18 PK product used to fatten buds. It’s compatible with all types of grow systems. You’ll be giving your plants a perfectly balanced amount of phosphorus and potassium, as well as increasing sugar yield, improving photosynthesis and increasing nutrient absorption.

How to use PK Warrior 9/18:

Use 0.5-1ml per liter of water from the fourth flowering week until the second last week, before flushing your roots.

Use 0.5-1ml per liter of water from the 4 th flowering week. Stop to flush the roots.

  • Plant extracts
  • SmartZen technology
  • Nitrogen: 0%
  • Phosphorus 9%
  • Potassium 18%

Grow Bigger Buds with Natural Fertilizers also stocks a wide range of natural, organic products used to grow bigger buds. Many growers prefer to find natural ways to increase resin quantity and flower thickness.

Bio PK 5-8 by Bio Tabs.NL

Bio PK 5-8 by Bio tabs.NL is a Dutch fertilizer that contains organic ingredients and can be used to increase root size, as well as flower size thanks to its 5-8 pk. You’ll increase your plants’ flavor and aroma too, thanks to its organic composition.

How to use Bio PK 5-8 by Bio Tabs.NL

You’ll need to use this product from the third flowering week onwards, once your plants begin to grow their flowers, until two weeks before harvesting. Start out using 1ml/L of water, which you can increase to 3ml slowly as the weeks go on. We recommend shaking the bottle well before adding to your water.

  • Add 1-3ml per liter of water from the 3 rd flowering week until 1-2 weeks before harvesting.
  • Nitrogen 2%
  • Phosphorus 5%
  • Potassium 8%

Powdered Guano by Guanokalong

This powdered guano is an acclaimed 100% organic fertilizer. This natural bud fattener us made using bat guano, which is perfect for fattening up flowers during the flowering period, giving them all of the phosphorus and potassium that they need.

How to use Powdered Guano:

When growing indoors you’ll need to mix your powdered Guano with your substrate before you even star growing. This is a slow-release fertilizer, and it will begin to take effect during the flowering period when done this way. Also, this avoids any extra root damage.

On the other hand, outdoors you’ll need to sprinkle 100g of Guanokalong Gano around your plants’ trunk so that when you water it, it goes down into the substrate. You’ll need to repeat this process every two months, approximately.

  • Pot: Mix 50g per 7L of substrate before you start growing.
  • Ground: Sprinkle 100g over the substrate and around the trunk every two months.
  • NPKCa 1-10-1-15
  • 100% natural bat guano

Organic PK Booster by BAC

BAC’s Organic PK Booster is a natural fertilizer used to fatten your cannabis plants’ flowers thanks to its extra potassium and phosphorus content. It’s used during the fattening period and contains 100% organic nutrients. This fattening product can easily help you to grow bigger buds.

How to use Organic PK Booster:

You’ll need to start using Organic PK Booster as soon as your plants start showing their first flowers. Add 1-3ml per liter of water from the fourth flowering week until 10 days before you plan on harvesting. You’ll need to use it alongside a base flowering fertilizer and a flowering stimulant. The manufacturer recommend keeping a close eye on your plants’ EC in order to avoid accidental over-feeding.

  • Use 1-3ml/L of water, starting during the 4 th flowering week until the end. Gradually increase the dose from 1-3ml towards the end.
  • Alfalfa food.
  • Sugar molasses.
  • Kalivinasse.
  • Organic thinner
  • Stone meal
  • Balanced amount of trace elements

Bio Bloom by BioBizz:

Bio Boom by BioBizz is a 100% organic product made using natural ingredients that are perfect for the flowering period in cannabis plants. It’s used with Bio Grow in order to obtain amazing results, according to the manufacturers grow chart.

Bio Bizz recommend using it alongside Bio Heaven in order to increase microbial life and root strength in your plants, alongside Top Max.

How to use Bio Bloom:

Start by adding 1ml of Bio Bloom per liter of water at the start of the flowering period. Increase the doses from 1ml to 4ml gradually during the last few flowering weeks.

  • Use 2-4ml per liter of water from the start of the flowering period until harvest.
  • NPK 2-7-4
  • Nitrogen 1.9%
  • Ammonium 0.48%
  • Nitrate 1.15%
  • Phosphorus 6.9%
  • Potassium 4.1%

Top Bud by Top Crop

Top Crop is a Spanish brand that deals in only 100% organic fertilizers. Their PK specific product, Top Bud , is designed to be used during the flowering period. This fattening product can be used to increase yield and the size of your flowers thanks to its NPK, as it hardly contains any nitrates and it contains plenty of potassium and phosphorus, as well as plenty of essential amino-acids.

How to use Top Bud:

Top Crop recommends using doses between 0.5-1ml of Top Bud per liter of water once a week. You’ll need to start using it from the fourth flowering week onwards, combining it with other fertilizers until week 7.

We highly recommend shaking the product well and then shaking your nutrient solution in order to ensure that it mixes well.

  • Add 0.5-1ml from the 4 th flowering week onwards.

Have you ever wondered how to grow bigger buds on your cannabis plants? Keep reading our estensive post about cannabis PK boosters & increasing yield.

5 Ways to Increase Yields (with any strain)

Are you an indoor cannabis grower? Almost all indoor cannabis growers want bigger yields for less money, time and effort. On the website, we’ve already covered how to increase potency & quality of home-grown buds, as well as how to produce buds with a better taste & smell, but this article will focus specifically on how to increase your indoor cannabis yields.

I will cover 5 easy ways to increase your indoor marijuana yields at harvest time, no matter which strain you’re growing!

These 5 tips and tactics will work to increase your indoor cannabis yields with any strain. However, the genetics (strain) you start with will have a huge effect on your final results and yields. For growers who want to start with high-yielding genetics, I’ve listed some popular & potent high-yielding cannabis strains in the bonus section below the main article, along with grower notes to help you provide each strain with exactly what it needs.

Now before you start worrying about increasing your cannabis yields, you must first make sure you’ve mastered the basics of growing, and know how to deal with cannabis problems that crop up.

Yet once you’ve got a handle on how to successfully grow your cannabis plants, you must begin to understand the following 5 tactics in order to get the most yields from your indoor grow space…

Table of Contents

  1. Increase Light Intensity (and possibly add CO2)
  2. Manipulate How Plants Grow (free way to produce more bud)
  3. Provide Correct Amount of Nutrients (sometimes less is more)
  4. Control Growing Environment (let the growing environment work for you)
  5. Harvest Plants Properly (most importantly, don’t harvest early!)

Bonus: Genetics Has a Major Effect on Yields (plus a few recommended high-yielding strains)

1.) Increase light intensity

(and possibly add CO2 so plants can use even more light)

A lot of growers ask me how to increase the size, number and density of their buds so they get bigger yields. The truth is, for most growers, the most effective way to increase bud size in the flowering stage is to increase LIGHT INTENSITY.

If your cannabis plant has no major problems or illnesses, then the biggest factor affecting your yields is the light intensity provided.

Light is basically food for your plants. Turning light into energy via photosynthesis is how your plants get all their energy to grow and produce buds.

As a general rule of thumb…

More Intense Light = Larger Plants & Fatter Buds = Bigger Yields

After you’ve germinated your seeds (or rooted your clones), one of the most important things to do right from the beginning is ensure that your plants are getting enough light.

During the vegetative stage, cannabis plants which don’t get enough light will tend to ‘stretch’ up toward the light with a lot of stem between nodes and leaves.

You need to provide enough light intensity to prevent young cannabis plants from stretching or growing too tall and falling over.

Example: The seedling to the left is stretching upwards because it is not getting enough light. The plant is trying to “reach” up towards what it thinks is the sun.

This stretching is not usually a good thing, because these seedings almost always fall over and will tend to grow into tall lanky plants. Tall, tower-like plants are hard to give proper light coverage in the flowering stage and will tend to get lower yields in most indoor setups.

That’s because during the flowering stage (when plant start producing buds), higher light intensity is what drives the production of buds. Wait, when does the vegetative stage end?

For most small-scale indoor growing setups, finding ways to increase the amount of light getting to the bud sites throughout the flowering stage is the most straightforward and effective way to increase your final yields.

In order to grow dense cannabis buds indoors, you need strong grow lights

Once your cannabis plant is producing buds, anything you can do to help get more intense lights to the bud sites will tend to increase your yields. Indoor cannabis grow lights provide the highest light levels close to the actual bulb. The further away from the bulb of a cannabis grow light, the less intense the brightness experienced by the plant.

Because of this, it is tough to provide bright light to all the buds on a cannabis plant when the colas are uneven lengths or at different heights. It is most effective and efficient to grow cannabis plants so they have a lot of colas spaced relatively close together and at the same height.

Cannabis growth patterns are something you have complete control over in the vegetative stage (addressed in the plant training section below) and taking the time to manipulate your young plants to make good use of your indoor grow lights is one of the best ways to increase your yields with the same lights.

Yet after flowering has already started, there’s not much you can do about uneven cola height without possibly hurting your plant, so if your plant is already flowering, you’ve just got to do your best to provide the most intense light possible to all the buds until harvest, without overheating or harming your precious growing colas. It’s important to keep plants cool during the flowering stage, as high temps can actually burn off terpenoids (smell/taste) and cannabinoids (potency), lowering the quality of buds even as you may be increasing the overall yields at harvest.

For the best results, you want all your buds directly exposed to intense light. Being in direct light seems to cause buds to swell up much more than when buds are hidden by leaves.

Why do buds need to be exposed? In the wild, cannabis buds are pollinated by the wind and need light from the sun to power the growth of seeds. A cannabis bud in the wild which is not exposed to air and light is unlikely to get pollinated, so the plant tends to not put much effort into the hidden middle and lower buds on the plant. Only buds which are exposed to air and bright light will tend to fatten up.

How much light is too much light?

Most indoor growers are unlikely to provide too much light to their marijuana plants – cannabis plants can use a surprising amount of light naturally! Outdoors in the wild, cannabis grows best in direct sunlight.

Therefore as long as an indoor grower keeps their grow lights the right distance away, they’re unlikely to provide too much light and actually hurt their cannabis garden.

  • CFLs and other fluorescent grow lights are relatively weak and can be kept as close to your cannabis plants as possible while keeping heat under control.
  • LED grow lights generally should be kept at least 12″ away, and 3W or 5W models should usually be kept 18+” away for the best growth. The distance needed for LED lights varies from model to model, so it’s important to listen to the manufacturer’s specifications when it comes to deciding how close to keep LEDs to your plants. Modern LED grow lights are very powerful, and It’s very easy to light-burn your plants with LEDs.
  • MH/HPS grow lights usually should be kept 1-2 feet away, though the distance needed depends on the size of your bulb. How Far Away Should MH/HPS Grow Lights Be From My Plants?
  • With all grow lights, it’s important to have some sort of cooling or exhaust system in place to prevent heat stress and help bring fresh CO2 to the plants.

If you keep increasing the light intensity in your grow room (or moving high-power lights closer and closer), you will eventually reach a point where you max out on the light your plants can use.

If you consider that light is like food for your plant, maxing out the light is like putting so much food on the table that your plants hurt themselves trying to finish their plates.

Plants provided with too bright light can experience light burn even if temps are cool when the light intensity gets too high. Some strains are more susceptible to light burn than others.

When you’ve reached the ultimate max of light that your plants can use, you still have a trick up your sleeve to further increase your yields. You can give your plants the ability to use even more of that light (and increase your bud yields even further) by increasing the CO2 levels in your grow room during the flowering stage.

So if light is like food for your plant, think of CO2 as a way to give your plants a way to “stretch their bellies” and eat even more food than would normally be possible.

The way additional CO2 works is it increases the amount of light your plant can use at very high light levels. With smaller grow lights like CFLs, a T5, even a 400W HID grow light, it is very unlikely that your light is bright enough to bring your plants to point where they are being limited by CO2. Adding extra CO2 when it’s not the limiting factor of growth is almost always a waste of time and money. For most plants, providing a source of fresh air will give plants all the CO2 they need. But if your plants have maxed out on light, artificially raising CO2 levels in the grow room can help plants use even more of the light and turn it into energy for growth.

Just remember that it takes a lot of light for your cannabis plants to hit this light saturation point. so unless you’re using high powered lights like a 1000W grow light (or high-power LEDs) and keeping the lights incredibly close, your plants are probably able to use all the light they’re receiving.

Most Important Point about CO2

Adding CO2 to the grow room does not directly increase yields. CO2 only increases the amount of energy your plants can produce under very high intensity light levels. If plants have not maxed out on light, adding more CO2 will not increase yields.

Another important point about using CO2 – In order for CO2 supplementation to be effective, you generally have to seal off the grow area and pump in enough CO2 to dramatically impact the CO2 PPM levels in the air. CO2 is dangerous to humans at these high levels, so be careful to protect yourself!

Learn more about CO2 and it’s relationship to light intensity and marijuana yields here:

Learn about grow light options, so you can pick the most intense light possible for your grow space:

Next you’ll learn how to manipulate your plant so that you can get more light coverage to your bud sites, using the same grow lights you already have.

2.) Manipulate plant structure (bend, net, top, etc) so all colas received strong & even light coverage

The basic idea behind plant training is that bigger, wider plants with many evenly spaced colas produce bigger yields.

Manipulating your plants is a basically free way to increase your yields, without needing to change anything else about your setup. You don’t need to buy expensive nutrients or get a new grow light for this to work for you.

Manipulating the plant in a way that doesn’t involve actually cutting your plant is often referred to as “LST” in the cannabis growing world, which is short for “Low Stress Training.”

The idea of LST is to manually force your plant to grow flat and wide, as opposed to tall and thin, usually using bending.

Here’s an example of a plant that has been LST’ed to grow very short and wide.

Notice how the plant is very short when viewed from the side, but when viewed from above the plant has a lot of leaf surface area. All those leaves are like little solar panels, getting energy from your grow light..

This flat plant shape allows the whole plant to better use your existing grow lights, since a greater percentage of the plant is closer to the light source, which means that more of the plant is getting exposed to brighter light intensity.

Any LST attempts should almost always begin when the plant is very young, as this type of “table” shape is much harder to achieve once the plant has developed into a triangle shape with a tall main cola.

A variation of LST is when growers use a screen or net to act as a guide with which to force plants to grow flat. This technique is known as ScrOG (short for “Screen Of Green”).

ScrOg is how you achieve something like this…

Notice how practically the whole plant is getting direct exposure from the lights. All that direct, intense light will be turned into energy by the plant, fueling bigger buds and overall yields.

In order to use ScrOG, you will need to invest in a screen, and take time during the vegetative and beginning of the flowering stage to train your plant to grow along the screen.

Another popular and easy-to-learn plant training method that increases yields is known as “Supercropping.”

Basically, supercropping means to bend your plant so that individual stems lay flat and form a “knuckle” where they were bent.

Supercropping can be used alongside any other plant training method or by itself. Any time you notice any colas growing taller than the others, but are unable to use bending to pull down that errant cola out and away from the center of the plant, you can use supercropping to force any plant to bend.

Now when it comes to plant training, there are lots of methods that involve actually cutting your plant, or removing stems and/or leaves.

As far as methods that involve actually cutting the plant, you have two main options. One is to ‘top’ the plant and one is to ‘FIM’ the plant.

With both techniques, you remove some of the growth on the end of the main cola of your young cannabis plant, which causes the plant to stop focusing on one cola (like a Christmas tree) and instead to create many bud-laden colas (grow a sea of buds).

This will give you an idea of how the plant growth patterns change as a result of topping or FIMing a cannabis plant at a young age.

A very popular form of plant training that utilizes topping and really seems to simplify the whole process for a lot of growers is known as main-lining or manifolding.

Now I will mention the next technique so this section is complete, but I highly recommend against using this technique until you already have had at least a few successful grows under your belt. I also recommend mastering the other forms of plant training first, like all the ones mentioned above before trying this technique.

Defoliation can hurt or even kill your plants if done incorrectly. I believe that defoliation has in important place in the grower’s plant training repertoire, yet I also believe that most growers would do better to master the other training methods first before ever trying defoliation.

Now that you’ve been warned…

(Experienced Growers Only) Controversial Defoliation Increases Marijuana Yields:

Next, learn how using less nutrients can actually result in bigger yields.

3.) Get the Right Cannabis Nutrients (and don’t overdo it!)

Your cannabis plant needs nutrients to grow, no doubt about it. But which nutrients should you give them?

How much nutrients do your plants need to grow their best?

But just getting the correct kind of nutrients and following a nutrient schedule isn’t the only step you should take. Unfortunately, for whatever reason, many growers tend to provide too high levels of nutrients to their plants. This is most common when growers mix many different nutrients and supplements together, without understanding what the plant needs to grow well.

As a grower, it is important that you learn how to tell when your plants are showing signs that they’re receiving too high levels of nutrients.

The most common sign that your plants are getting too much nutrients is “nutrient burn.”

Growers often refer to nutrients as “food” for your plants. When you talk about it that way, it intuitively seems like giving more “food” would result in bigger buds, but is that really the case?

As we learned earlier in the section about light intensity, the real “food” for your plants is light. Light is what your plant turns into energy through photosynthesis, and this energy is what fuels vegetative and flowering growth.

Then what do the nutrients do? They’re like little helpers that give your plant what it needs to carry out the process of photosynthesis and growth.

I like to think of nutrients like vitamins for humans. While humans need to get certain vitamins to survive, I want you to consider that people should never eat multi-vitamins like candy. In fact, if you give people more vitamins than their body can use, they will actually get very sick.

Nutrients are important to healthy growth, but it’s important to understand that going overboard will cause more harm than good.

While many growers are trying to raise nutrient levels as high as possible, I have gotten better results (yields) when I simply try to avoid providing too little or too much nutrients.

Healthy cannabis leaves appear green and uniform. As long as your leaves look like this, without signs of spots, discoloration, curling or other problems, you have nothing to worry about!

Cannabis plants seem to produce the best yields when nutrient levels are kept on the lower end compared to what is recommended with most nutrient systems; I try to give enough nutrients to prevent nutrient deficiencies throughout the grow, while avoiding nutrient burn. I rarely raise nutrient levels unless I’m noticing signs that this particular plant is a heavy nutrient-user and needs more. You will notice that different plants often require wildly different levels of nutrients.

As long as your cannabis is not showing signs of nutrient burn or nutrient deficiencies, you’re in the “sweet spot” for optimum growth and yields

When it comes to growing in soil, one of the best things you can do is compost your own super soil. Composted super soil can be made completely organically, and will provide your cannabis plants with all the nutrients needed throughout yoru grow. That will make it so that you don’t have to worry as much about nutrients or deficiencies, and you can focus your time and effort on maintaining your plants.

For growers using bottled nutrients, including hydroponic growers as well as many soil growers, I usually recommend you start using half (or even less) of the suggested amount of nutrients listed on most nutrient schedules. There’s a lot more information about this on my main article about cannabis nutrients. I generally only ever raise my nutrient levels when I notice that this particular plant is a heavy nutrient user (the lower leaves are starting to turn yellow and die – especially in the vegetative or early flowering stage, though it’s normal to start losing leaves the last month before harvest).

Slightly lowered nutrient levels seem to be especially important to bud production during the last 2-4 weeks before harvest time.

It’s natural for the lower leaves of a cannabis plant to start turning yellow as harvest time approaches

It’s natural for the plant to start losing leaves as the plant puts all energy into making buds, and unfortunately many growers respond by ramping up nutrient levels late in the flowering stage. Unfortunately, adding too high levels of nutrients during the later part of the flowering stage, especially nitrogen, tends to hinder the plant from developing buds properly.

Yet if you keep nutrient levels low and allow the vegetative growth to die away during those last few weeks, the buds seem to swell up dramatically compared to a plant that is kept green all the way to harvest. By keeping nutrient levels lower as harvest approaches (or flushing the plant by feeding only plain water), you will also make sure that there is no leftover “nutrient taste” in the buds which never got the chance to be used up before harvest.

Lowering overall nutrient levels and letting the leaves yellow and die as harvest approaches has seemed to improve my bud yields compared to when I use full levels of nutrients until harvest, and it also seems to improve the final taste & smell of buds.

Bonus Tip For Soil Growers: Provide a source of sugar (blackstrap molasses works great) towards end of flowering stage to increase bud weight

By supplementing your cannabis roots with extra sugar towards the end of flowering, you help improve the flavor of your buds while also fattening buds up.

This is especially effective for those growing organically, as this works synergistically with the beneficial microbes in your soil

There are many commercial supplements that claim to fatten up buds and improve flavor, but most of these work by adding simple sugar.

If you’re growing in soil and looking for a cheap yet effective alternative to those expensive supplements, you can add a little bit of regular blackstrap molasses (a teaspoon per gallon) to your water every time you water your plants during the second half of the flowering stage.

Please Note: It is not recommended to use molasses in a hydroponic grow setup.

Speaking of how indoor growers can get better yields by providing cannabis plants with the exact right environment…

4.) Control Temperature (and humidity)

A good growing environment is crucial to the health of your plants, as well as your final potency and yields. When the temperature (and to a lesser extent the humidity) is too high or too low for your plants, your plants will not grow properly and buds won’t fatten up no matter what else you do.

Too high temps late in the flowering stage can also reduce the potency of smell of your buds by burning away cannabinoids and terpenes.

By controlling temperature and humidity, you can actually increase the smell and potency of your buds at harvest.

If there is a particular source of heat that is harming the plant (like a hot grow light), you’ll know because the leaves closest to the source of the problem will wilt and turn a brownish color. Learn more about how cannabis plants respond to heat stress.

Now that you’ve learned how to provide the best environment and growing conditions for your cannabis plant to produce the biggest yields indoors, there’s one last thing you must do to ensure the highest yields possible…

5.) Wait until the right time to harvest

For most strains of cannabis, there is a 2-3 week window during which buds can be harvested. When growers harvest before the proper “harvest window”, it can reduce your yields (and potency).

By allowing your buds to ripen fully, you will maximize your overall yields. I’ve seen buds gain up to 25% adiitional size (at least visually) in the last 2-3 weeks before harvest. If I’d harvested these buds earlier, I would have dramatically lowered my overall yields.

Another benefit of waiting until the right time to harvest is you can choose to harvest your buds when they have the exact effects you’re looking for. Harvest earlier for a more buzzy daytime high, and harvest later for a more relaxing, couchlock experience

Learn how to tell when your cannabis buds are ready for harvest:

And also make sure you professionally cure your newly harvested marijuana buds every time…

Harvest your cannabis at the right time to increase your yields

Genetics is Key to Marijuana Potency and Yields

While all the tips and tactics above will help increase your yields with any marijuana strain, the genetics of your plant also play a huge role in how the plant grows, how the buds fatten, and ultimately your yields.

The strains available today get much higher yields and are much more potent than any strains that were around even a decade ago. Strain potency, yields, and ease of growth have been improving steadily over the last several decades as hundreds of growers around the world are constantly breeding new strains and improving on old favorites.

So even if you do everything right to get bigger yields, you may not get buds as big as the ones you see online or in cannabis magazines. It’s an unfair comparison if you’re using so-so genetics.

Investing in a high-yielding strain can be one of the best ways to increase your final yields (as well as the overall quality, potency and smell of your buds!).

Start With A High-Yielding Strain!

Listed below are 3 proven high-yielding strains which consistently produce top-quality buds:

Tangerine Dream by Barney’s Farm – Remarkably Strong

Although we haven’t grown the Tangerine Dream strain ourselves, this enchanting strain has remarkable effects and looks/smells beautiful! We were pleasantly surprised to find out it also tends to produce high yields!

Aurora Indica by Nirvana – Stays Short!

Attention stealth growers! If you want a high-yielding plant that is quick to harvest, and actually stays short, than this may be the strain you’re looking for! For those of you growing in a smaller setup, a plant that naturally stays short and bushy can make growing much easier, and this strain will maximize your yields!

Growing tips: This strain seemed to do better with relatively low levels of nutrients compared to some other strains. We started at half nutrient strength when growing Aurora Indica for the first time (picture in upper right – yielded a little over 7 ounces), and actually had to take nutrient levels lower to almost 25% strength to get the best results in flowering. Aurora Indica plants are easy to grow and respond well to training and especially supercropping. Harvest at 7-9 weeks for a stoney “couchlock” effect.

Buds: Dense indica buds that are covered in trichomes, causing a heavy, almost sedating effect (“couchlock”). Our buds smelled earthy, with some fruity, almost minty tones underneath.

Wonder Woman by Nirvana – Big Yields!

Wonder Woman impressed us with her high yielding power (view the full grow journal here). Honestly Wonder Woman is probably the highest-yielding strain we’ve ever grown!

Growing tips: This forgiving skunk strain is extremely easy to grow, and responds well to FIMing/topping/LST and other training methods. It gets to a nice size – not too tall, not too short – and about doubles in size after the switch to 12/12. This strain takes a little less than 3 months to finish flowering, but she makes up for it with great yields and long, dense buds. It tends to do best at relatively high levels of nutrients – we got great results feeding her at full strength.

Buds: Big yields. Dense, hard buds that look beautiful, and an uplifting and relaxing mental effect, with also a nice body effect. Our buds smelled skunky, with a hint of diesel underneath.


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I thought I already knew it all, but after I went through this grow bible, I discovered that there were still new, easy ways I could increase my yields and grow even more potent buds!

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