Best Cannabis Seeds To Grow Indoors

Almost any cannabis strain can be grown indoors or outdoors, but some have characteristics that lend themselves better to one or the other. The best strains for indoor growing are usually short, stout plants that finish early. Check out Leafly's favorite strains to grow indoors. Cannabis Seeds for Indoor Marijuana Growing. Best seeds for growing weed indoors. Check out these marijuana seeds for growing cannabis indoors. Weed seeds.

10 Best Cannabis Strains to Grow Indoors and Outdoors

Almost any strain can be grown indoors or outdoors, but some have characteristics that lend themselves better to one or the other. Kasey Craig gets you started in the right direction.

Depending on your cannabis growing goals and your location, choosing a marijuana plant based on its growing conditions makes sense. For example, you would want to keep a delicate plant indoors to prevent it from developing rot or to keep pests away. But, if it’s a tall and potent smelling plant, you’ll likely find growing it outdoors a better choice.

In the content below, we’ll look at five strains ideal for growing indoors. Then, we’ll discuss five strains that make sense to grow outdoors. After your research, you can make the best choice for you based on the weed garden you want to create.

Top 5 Cannabis Strains for Your Indoor Garden

If you live in a place with inclement weather, having an indoor cannabis garden makes the most sense. Or, if you live in an urban area, keeping your plants private could be ideal. After careful consideration, in our opinion, these are the top 5 strains to grow inside.

Girl Scout Cookies

One of the most potent strains of cannabis, Girl Scout Cookies is an indica-dominant hybrid. Indoors, the plant produces flowers in nine to 10 weeks. While the yield isn’t the largest, the high is worth the effort.

Girl Scout Cookies will give you a short to medium height plant with sturdy branches. Plus, growing indoors gives you the option to drop the temperature. A cooler temp with these plants will provide you with a purple color and rich density buds with crystallization.

Girl Scout Cookies is very resistant to mildew and pests. This plant will grow well in hydroponics or soil. Most importantly, you’ll want a stress-free space for your plant to branch out. Unless you live in a Mediterranean climate, growing Girl Scout Cookies indoors is your best bet.

Afghan Kush

Pure indica, Afghan Kush loves a climate that mimics a European summer. The plant only takes around seven to eight weeks to flower, and you can expect a yield of about 16 ounces per 10 square feet when growing indoors. Also, Afghan Kush is highly resistant to molds, parasites, and pests. You can expect this to be easy to grow in soil or a hydroponic system.

Gorilla Glue #4

Gorilla Glue #4 can yield about 18 ounces for 10 square feet when grown indoors, and this strain only takes about eight to nine weeks to flower. The plants can grow in a warm sunny outside garden, but you can reap the benefits of a dank indoor harvest without risking them in outdoor conditions.

White Widow

White Widow is a sativa-dominant hybrid that is easy to grow and is a top pick for beginners. The plant reaches a medium height and can yield around 18 ounces per 10 square feet when grown indoors.

White Widow flowers in eight to nine weeks. While you can grow this plant outside, we recommend that you grow White Widow indoors in a controlled setting. You can grow in either soil or hydro, but a hydroponic setup will surpass your harvesting expectations.

Kandy Kush OG

Kandy Kush OG has a moderate to high yield with a flowering time between 65 to 75 days. The plant is mold-resistant and grows well in cooler climates. It’s a splendid blend of OG Kush and Trainwreck. When growing indoors, it’s best to use the Screen of Green (SCROG) method.

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Top 5 Cannabis Strains for Outdoor Growing

There are many reasons for growing cannabis outside. It’s more environmentally friendly, you can yield more buds, it’s much cheaper, and outdoor buds develop a distinct flavor. When looking to grow outdoors, you likely want a large plant that gives you a maximum yield. Below you’ll find the top 5 marijuana plants to grow outside.

Northern Lights

If you’re looking to grow a tree-sized cannabis plant, Northern Lights can grow more than 6.5 feet outdoors. The plant will thrive most in a sunny and warm environment. Like many strains, the Mediterranean climate is best for this plant to flourish.

Northern Lights is a hardy, pest-resistant plant that is pretty easy to grow. The strain takes about seven to nine weeks to flower.

Swazi Gold

Swazi Gold is pure sativa that may take 12 to 14 weeks to flower and has the ability to grow quite big. Aside from the high level of attention necessary to grow Swazi Gold, the sheer number of buds you can produce is worth all the love and effort. You can expect more than 25 ounces per plant!

Durban Poison

You need to grow Durban Poison outdoors if you want your plant to reach its full potential. The warm sunlight is ideal for your plant, and the being outside gives the plant room to spread its branches. You can expect your plant to tower to more than seven feet tall.

Durban Poison is resistant to pests and common molds.

Blue Dream

Perfect for cultivating outside, you can expect an impressive yield with little effort. Blue Dream is a true dream for growers in a subtropical or Mediterranean climate. You can expect more than 20 ounces per plant, and your plant could grow higher than 13 feet tall. Also, Blue Dream may be one of the easiest strains to grow outdoors, especially for novice growers.

Alaskan Thunder Fuck

Let’s face it, Alaskan Thunder Fuck is a pretty awesome strain name. Nothing will compare to growing Alaskan Thunder Fuck outside. The plant does well in a cooler northern climate and can produce a massive yield. When grown outdoors, you can get more than 30 ounces per plant. While this is a cold-weather strain, you’ll still want plenty of sun exposure and food to encourage healthy growth.

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Also, if you grow this plant in a trench, it will help keep the roots warm. Flowering time is about nine to 10 weeks.

Keep in mind, you can grow any indoor strain outdoors, and you can grow outdoor strains indoors. You’ll want to make sure you have the right spacing, lighting, food, and watering needs for the plant you’ve chosen. With the internet available at our fingertips, you have the resources and information to try anything you want. Whether you’re an expert or novice grower, there is always something to learn about maximizing your yield.

Top 6 weed strains to grow indoors

New growers searching for the best strains to grow indoors need to look no further. Check out the top weed strains to grow inside.

By subject matter expert and editor: Pat Goggins

Indoor weed is famous for its high quality, and you can grow it anytime of year if you’ve got the right space for it. Grow tents and grow lights are cheap and easy to use, and you’ll cover the initial cost of investment quickly.

Which strains should you grow?

Some strains grow better in an indoor environment, while others do better outdoors. Indoor growers typically go for short, stout plants because they take up less space, which can be limited indoors.

Strains that finish quicker—meaning, a short flowering time—are also desired, to save money on your electricity bill. Indica strains typically fit this bill, while sativas and hybrids usually grow bigger and take longer to finish, but it really depends on the strain.

If you love a certain strain that takes 11 weeks to flower, go for it, but whichever strain you choose, check the breeder or seed bank’s information on it to get a sense of how it’ll grow.

Understanding autoflower strains and feminized seeds

Autoflower strains are a great option for growing indoors as they can go from seed to harvest in as little as three months. But, beware: the final buds might not be that potent.

Feminized seeds are also useful because they ensure every plant is a bud-producing female, which saves space in your indoor grow because you won’t have to grow males and get rid of them.

A lot of common, classic strains come in autoflower and feminized varieties.

With thousands of strains to choose from, here are six of our favorites that are great to grow indoors.

(Elysse Feigenblatt for Leafly)

Blue Dream

Some people roll their eyes when you mention the popular strain, Blue Dream, but it truly is a dream to grow. This classic hybrid of Haze and Blueberry grows to a moderate size, has an average flowering time, and doesn’t need much attention indoors.

Just be careful and make sure it gets plenty of airflow, so it doesn’t get mold. Blue Dream is known for its big yields, so get ready to have some of this strain with euphoric and creative effects in your stash for a while.

Zkittlez

With a sweet, tropical scent and purple accents, Zkittlez is a pleasure to have around your indoor garden.

Short in stature, with dense, chunky buds, this typical indica has won awards in the past and is perhaps most famous for parenting Runtz, 2020’s Strain of the Year at Leafly. Zkittlez is easy to grow and calming to smoke.

Bruce Banner

Bruce Banner is a great old-school strain that flowers quickly and packs a hefty, euphoric punch.

It’ll hulk out in your garden too—even though it’s short and bushy, it’s a high-yielder. Banner is easy for novice growers but recommended for experienced stoners for its potent potential.

Wedding Crasher

A newer favorite of ours, Wedding Crasher has a classy lineage: Wedding Cake and Purple Punch. This hybrid leans toward the indica side with Purple Punch in its roots and has short, dense buds with hints of purple.

Dessert strains are in right now, so finding seeds and clones of Wedding Crasher shouldn’t be too tough.

Banana Kush

Banana Kush is an underrated OG that’s beautiful to look at in your garden. In the right environment, you’ll get dark purple buds with a distinctively sweet, fruity scent.

Pests also love Banana, so be sure to keep it in a cool, dry climate.

Vanilla Frosting

Gelato descendant Vanilla Frosting is a unique, newer strain with a creamy vanilla flavor and a gassy finish.

It’s a hybrid that leans toward an indica, with dense buds, silvery-green leaves, and purple accents. It’s a high-yielder, perfect for growing indoors and for growers of all experience levels.

20 Great Cannabis Seeds for Indoor Marijuana Growing

Check out our handy guide on how to grow marijuana indoors and 20 great cannabis seeds for indoor marijuana growing. Growing marijuana indoors involves strong lights, fans, irrigation systems, and other cultivation equipment needed to provide marijuana plants with the right light, water, and nutrients to grow to their fullest potential.

What Is Indoor Marijuana Growing?

Indoor marijuana growing doesn’t just mean putting a marijuana plant next to the windowsill and hoping for the best. Indoor growing requires growers to mimic outdoor environmental factors such as sunlight, rain, and soil conditions. Indoor growers can equip themselves with lights strong enough to give energy to plants and the right soil conditions for optimal nutrient intake.

Indoor cultivation gives growers ultimate control over all of the elements that affect a cannabis seed’s yield, flower density, trichome production, and overall quality. Indoor growers aren’t beholden to the natural climate or season. Furthermore, cannabis crops are safeguarded against harsh environmental conditions such as wind, rain, and snow and predators.

Factors to Consider When Choosing Indoor Cannabis Seeds

When growing marijuana indoors, you’ll need to consider the most basic elements of a grow set-up starting with which cannabis seeds to buy for an indoor grow. The type of cannabis seeds you choose depends on your cultivation experience, budget, strain preference (sativa, indica, hybrid), and size of your growing space.

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Here, you’ll find a list of 20 great cannabis seeds for indoor growing along with the strain’s ideal growing conditions.

Autoflowering Cannabis Seeds For Growing Indoors

Some growers may even use autoflowering seeds, which don’t require a photoperiod to flower like most marijuana seeds. Photoperiod marijuana seeds need a certain amount of light and darkness per day, usually a 12/12 cycle to transition from their vegetative to the flowering strains. For light-deprived locations, autoflowering strains will automatically flower at a set period.

1. Sensi Skunk Automatic

Sensi Skunk is a great cannabis seed for beginners and budget growers. Sensi Skunk Automatic allows beginners to take a low-maintenance approach to grow. This autoflowering seed features many of the same Skunk characteristics that have made its parent a favorite among growers and critics.

Sensi Skunk Automatic is bred from a curated ruderalis strain that enables the strain to begin to flower without a photoperiod. Sensi Skunk should autoflower after about five weeks. The seed grows short and stocky plants with big buds. Harvesting can occur about 50 days later. Experience a citrusy and sweet aroma with uplifting and stress-relieving effects.

2. Super Skunk Automatic

Super Skunk Automatic is ideal for medicinal users who want to plant as much medicine throughout the year as possible. Super Skunk Automatic provides users with strong indica effects without leaving you glued to the couch. Novice growers will appreciate how easy this strain is to grow and the relief it can bring for stress and pain.

For growers who can’t or don’t have the energy to maintain a finicky plant, the Super Skunk automatically begins to bloom after about four weeks regardless of changes in photoperiod. This automatic strain can be grown in a variety of areas such as windowsills. Super Skunk’s flowering period takes about 65 days and produces an average yield.

3. Northern Lights Automatic

Northern Lights Automatic is a great cannabis seed for growers with some experience who want to push their skills to the next level. Northern Lights Automatic is worth the effect due to its robust effects. This autoflowering strain is relatively easy to grow and produces award-winning effects and aromas.

Northern Lights Automatic grows short and just over three feet. Its flowering period is about 55 days and its seeds begin to flower after about a month or sooner. Northern Lights Automatic can produce harvests with dense and trichome-rich buds up to three times a year due to its autoflowering characteristics and flowering periods.

4. Gorilla Glue Automatic

Gorilla Glue Automatic has won multiple industry awards for its extreme trichome production that can leave trimming shears glued stuck. Gorilla Glue Automatic can reach a medium height with a dense bud structure. This autoflowering strain is easy to grow for beginners and produces a sweet and pungent aroma.

Gorilla Glue Automatic’s grow time is between 50 and 60 days and produces a plant reaching almost 40 inches. Gorilla Glue exhibits relaxing and euphoric effects, perfect for medical conditions such as pain, arthritis, stress, nausea, and epilepsy. Be careful, Gorilla Glue has a very high THC content.

5. Girl Scout Cookies Automatic

Girl Scout Cookies Automatic combines classic GSC and ruderalis genetics to produce a high-quality autoflowering strain. This indica-dominant autoflowering strain grows into medium-size plants that respond well to training. Expect trichome-rich and sweet-smelling buds that produce cerebral and physical effects.

GSC Automatic’s grow time is between 60 and 70 days from seed. Plants can reach up to 35 inches in height and produce up to seven ounces per plant. GSC Auto is easy to grow, but can produce an extremely pungent aroma. Carbon filtering can help keep your indoor grow more discreet.

6. Green Crack Automatic

Green Crack Automatic is an autoflowering marijuana strain that blends the iconic Green Crack genetics with a ruderalis. The resulting Green Crack Automatic strain grows short and stout with extremely white buds and a delightful citrus and mango aroma. Green Crack Automatic delivers users energizing effects.

Green Crack Automatic’s grow time is about 63 days from seed and can grow up to 35 inches tall. Green Crack Auto is an easy-to-grow strain that produces moderate-to-high yields indoors and outdoors. After eight to nine weeks, these autoflowering seeds can deliver the right dose of medicinal relief to lift your spirits.

Feminized Cannabis Seeds For Growing Indoors

Feminized cannabis seeds for growing indoors will only produce female cannabis plants, albeit, they require a photoperiod to begin flowering, unlike autoflowering strains. Feminized plants eliminate the possibility of growing a male plant that can pollinate your entire grow. Many feminized seeds can thrive in indoor conditions.

7. Big Bud

Big Bud is an excellent feminized cannabis seed to grow indoors due to its very high yields and dense buds. Big Bud was popularized in the 1980s and continues to be one of the hardest-working seeds out there. This indica-dominant variety has a hash-like flavor and aroma and slightly sedative effects.

Bud Bud has a flowering time between 50 and 65 days. This feminized seed can grow to an average height and have a growth spurt during bloom. Bid Bud prefers warm weather and can thrive indoors under a hydroponic setup. Its thick stalks help support its heavy bud production. Sea of Green (SOG) techniques can be used for speedy growth.

8. Silver Haze #9

Silver Haze #9 is a sativa-dominant strain from Sensi Seeds that can be grown indoors. Silver Haze is commonly available as a feminized seed. This classic and award-winning haze strain produces a cerebral high and a complex bouquet of scents including citrus, berries, mint, and other sweet fruit.

Silver Haze #9 has a flowering time of about 70 days. Silver Haze #9 can grow well under lights. It can grow tall with heavy resin production and long buds. Silver Haze #9’s strong growth allows growers to grow these plants in close proximity. Silver Haze #9 also responds well to bending and training.

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9. Amnesia Haze

Amnesia Haze takes traditional Dutch genetics and elevates them to produce a euphoric and cerebral head high like other haze varieties. Amnesia Haze thrives in indoor growing conditions, but has a relatively long flowering time. The wait is worth it. Amnesia Haze can produce a high yield under optimal cultivation conditions.

Amnesia Haze prefers consistent warm temperatures and has a ten-to-eleven-week flowering time. Growers are advised to keep indoor temperatures between 70 and 80ºF. Amnesia Haze plants must be well-ventilated to prevent mold and pest problems. This feminized seed produces a citrusy and sweet-smelling strain with powerful effects.

10. White Widow

White Widow is an excellent cannabis seed to grow indoors. With roots in the Netherlands, White Widow was developed from a pure Brazilian sativa and an indica hybrid. White Widow’s seeds are easily available and are great entry-level seeds for beginner growers. White Widow can withstand cooler climates.

White Widow produces a pine-scented cannabis strain and has a flowering time of eight to nine weeks. White Widow grows into a stocky, but high-yielding plant with resin-covered buds. Growers recommend using the SCROG technique with White Widow. White Widow can grow in soil or hydroponic setup.

11. Power Plant

Power Plant, from the Dutch Passion Seed Company, originated from South African sativa seeds. Due to its hardy genetics, Power Plant grows fast compared to most sativas and grows medium-sized flowers with popcorn buds, too. It has a woody and earthy aroma that can give you a calm and clear-headed high.

Power Plant’s flowering time is between seven and nine weeks. Power Plant seeds can grow well under SCROG methods. This plant can grow tall so consider your grow size. You can prune the plant to keep it growing nice and strong and save the trim for other cannabis infusions.

12. Critical

Critical is an overall excellent marijuana seed to grow indoors or outdoors. Critical seeds produce a high yield, are easy to maintain, and create a heavy coat of resin over its dense marijuana buds. Critical allows users to feel more relaxed and blissful.

Critical has a flowering time of about seven weeks. Its relatively speedy flowering time makes it a great strain for those who want to grow as fast as possible. Critical produces a plentiful crop with its tall plants, long leaves, and rich resin production.

Regular Cannabis Seeds For Growing Indoors

Regular cannabis strains can produce either a male or a female plant. There are many regular cannabis strains that can grow indoors. Below, you’ll find a list of the best cannabis seeds for indoor growing.

13. Jack Herer

Jack Herer is a great cannabis seed for indoor growing. Whether you’re a first-time or long-time grower, Jack Herer is an easy-to-grow sativa strain that delivers clear-headed euphoria and eases muscle tension. Enjoy its earthy, lemony, and peppery aroma mixed with woody and fruity flavors.

Jack Herer’s flowering time is about 65 days and can grow very tall. Jack Herer grows exceptionally in hydroponic systems. It grows bushy, so make sure there is enough space between your marijuana plants. Also, make sure you have enough height to support its growth and watch out for heavy branches that can snap.

14. Chemdawg

Chemdawg has been a popular cannabis seed since the 1990s. Chemdawg is the parent strain to many of today’s best-selling strains including Headband, Sour Diesel, and OG Kush. This indica-dominant strain is easy to grow and can handle stressors well. Chemdawg produces dense buds packed with trichomes and a fruity and diesel aroma.

Chemdawg’s flowering time is about 63 days, a relatively quick grower compared to other cannabis strains. Chemdawg does well when trained in a SCROG environment to increase the yields in a small space. SCROG requires growers to prune the foliage from the base to improve airflow. Chemdawg is vulnerable to mold.

15. White Russian

White Russian seeds by Serious Seeds is an indica-dominant hybrid with AK-47 and White Widow genetics. White Russian seeds produce a high bud-to-leaf ratio with compact and trichome-heavy colas. White Russian strains deliver a long-lasting and cerebral buzz along with a deep sense of relaxation.

White Russian seeds grow into medium-height plants and produce a very pungent smell. It has a flowering time between eight and nine weeks. White Russian doesn’t require as much maintenance as other cannabis seeds and can flourish in a warm environment.

16. Maple Leaf

Maple Leaf cannabis seeds by Sensi Seeds is a legendary Aghani strain that was smuggled out of the country around the late 1970s. This pure indica is fast flowering and develops compact plants, large leaves, and dense buds that have an excess of resin. Enjoy its citrus aroma and taste, as well as its sedating effects.

Maple Leaf’s flowering time is between six and seven weeks. Maple Leaf plants resemble sativa plants with its tall-growing characteristics and dense and elongated buds. Try your hand at growing Maple Leaf in soil or hydroponic setups. SCROG methods work well with this strain, too.

17. Hindu Kush

Hindu Kush is a pure indica strain that came out of the Hindu Kush mountains in Central Asia. Since the 1980s, Hindu Kush has been a stable strain that produces medium-height plants and dense buds. Hindu Kush strains exhibit a woody smell along with notes of hash and a calming body high.

Hindu Kush has a flowering time between six and seven weeks. Hindu Kush grows short and bushy with dense flower buds. With a hydroponic set-up, Hindu Kush can produce large buds with tons of resin. Use a SOG (sea of green) technique to maximize your yields. Just make sure you keep the airflow optimal to avoid mold.

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