deep seedling pots

deep seedling pots

My apologies. I’d delete this whole thing if I could figure out how. When I wrote this, I remembered the treelings that I got this way, so after I sent (oops) I went to search for “tree pots”. I found them. Sorry.

Well, it’s that time again. I’ve got seeds ordered, and plans for more *G*. Now I need something to grow them in, before they go into the cold, cruel garden. I’ve received tomato plants thru the mail, some were grown in really deep pots, and I’d like to find those pots”. I’ll try to explain what I want, so bear with me. They were sheet trays. The top openings of the trays were about 1.5″X1.5″, not much different than a standard seedling tray, but they were much deeper. I’m remembering 4-5 inches, but that may be wrong. I’ve also seen seedling trees grown in something like this, but they were wrapped in newspaper when I got them, so didn’t see the container.
Does anyone know what I’m talking about, and where to find something like this? I’ve googled and searched, but I guess I’m not asking for the right thing. I KNOW they exist 🙂

This message was edited Jan 14, 2010 9:17 AM

Don’t be sorry. It sounds like a good idea to me.

There are some called “root trainers” and some called “plug” trays.

I purchased a set two years ago from a Canadian supplier. Since then, in my comparison tests, the seedlings in rootrainers definitely developed longer root systems than those in standard sixpaks or 2 inch pots. Whether that means healthier or not, I cannot say, because the blight problems last summer played havoc with my botanic experiments. There was one problem, though. The close spacing (about 1.5 inches apart) means that if you leave the plants in the rootrainers too long, the leaves will be too crowded and will tangle together. This year I am going to keep close watch on them, and when the foliage takes off, I will transplant them a second time out of the rootrainers into some bigger containers, perhaps tall paper cups.

don – when you started your seeds in the roottrainers did you fill the roottrainer up to the top with seed starting formula and then plant your seeds or did you fill it only half way before putting the seed in. i ask ecause i was wondering if you filled it to the top as the plant grew wouldn’t it get leggy even with the deeper roots.

I started the seeds in another shallow container and when 4 leaves arrived, transplanted them into the rootrainers, sinking the stem deeply almost up to the leaves to encourage more roots. Maybe it might be a good idea to combine that with your suggestion, transplanting into a half-filled roottrainer and gradually filling it up with soil so that even more roots could sprout from the stem as it becomes submerged. I’ll try that this year!

Charley’s Greenhouse usually has them too.

great web site, thanks for sharing it.

Glad you like it, one of my own favorites.

Call me goofy, but I buy the plastic glasses at the dollar store-16 for a buck, drill a drainage hole and, voila, I have a deep pot to replant my seedlings in. They grow nice roots before I put them in the garden. I plant the seedlings down to the first leaves. Then you can adjust how far apart the they are growing as they get bigger. Only drawback is that the glasses are a lttle tippy.

i have mentioned this before and don’t call me a ghoul but whenever i visit the cemetary to lay flowers for my family and friends and i have to dispose of the plastic wrap they come in i always find loads of containes that are very suitable to starting seeds and transplanting plants.

don – the reason i asked you about how much soil you put into the root trainers is because last seson i purchased from park seeds one of those styroform (sp) blocks which held those “dirtless” cylinders in which you placed your seeds. they were very long and when the plant started to grow i had no means of supporting the stems. plus the cylinders were so tall that i had trouble adjusting my grow lights to them and still keep the lights close enough to my regular 2 inch seed starting containers. lucky for me i was experimenting and i only had two of those things from park seeds so i just dumped them after a while.

Welcome to the famous Dave’s Garden website. Join our friendly community that shares tips and ideas for gardens, along with seeds and plants.

Deepot Tree Pots

Great for a wide range of hardwood and other tree seedlings, Deepots give plant roots the space and depth they need, making them an excellent choice for plants requiring a deep root ball. Specially designed tray (sold separately) is capable of holding 25 pots and allow seedlings to be spread out or consolidated, giving you control over sorting and growing density.

  • Each cell has 8 vertical ribs to train roots downward.
  • Outside stacking lugs prevent cells from sticking together.
  • Wedging ribs keep the collars in place.
  • The bottom of each cell has 5 drainage holes.
  • Made with post-industry, pre-consumer recycled polypropylene resin.

D60 pots have a cell diameter of 2.5″, a depth of 14″, and are the largest available size.

D43 pots have a cell diameter of 2.7″ and a depth of 10″.

D40 pots have a cell diameter of 2.5″ and a depth of 10″. Interwoven design of D40 pots maximizes growing space.

D33 pots have a cell diameter of 2.7″ and a depth of 8″.

Great for a wide range of hardwood and other tree seedlings, Deepots give plant roots the space and depth they need, making them an excellent choice for plants requiring a deep root ball.