Rootrainers™ Propagation Systems

Rootrainers™ unique design allows air pruning for optimum root formation.

Better roots mean better plants every time. The grooved cell design directs the main root to grow straight down towards the large drainage opening at the bottom. The root tip makes contact with the air and dies off. The plant then compensates by producing new root growth, with no root balls.

Rootrainers™ hinge open to allow easy removal of the plant with no root disturbance, making them ready for transplanting. Perfect for nearly all plants and especially those that are sensitive to disturbance and require deep root runs. Reusable from year to year. Includes detailed instructions and planting tips.

Deep Rootrainers™: Great for sweet peas, runner beans and all deep rooted flowers, fruits, and vegetables. 32 reusable cells, 5-inch deep, with ventilated holding tray (for air pruning) and propagating lid.

Rapid Rootrainers™: Great for bedding plants, lettuce and herbs. 32 reusable cells, 3-inch deep, with ventilated holding tray (for air pruning) and propagating lid.

Item # Description Size Stock Status 1–1 2+ Qty
DRT900 Deep Rootrainers 5-inch deep, 32 reusable cells In Stock $18.99 $16.99
RRT901 Rapid Rootrainers 3-inch deep, 32 reusable cells In Stock $16.99 $14.99

Product Information


  • 32 cells
  • Available in either 3" or 5" deep

Product Features

  • Includes holding frame and clear dome

Product Benefits

  • Grooved cells promote downward root growth so roots don't spiral; seedlings transplant better than seedlings from smaller inserts or pots that have bound-up roots
  • Growing cells hinge so it's easy to remove plants without tearing roots

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Customer Reviews

Review Summary (Based on 4 Reviews)

Overall Rating: 3/5

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from UT

Root Trainers


Rather disappointing, not as sturdy as I expected. Trays are smaller than standard trays, so waste space on heat mat as well as it would be nice to have a little larger cell for each plant. Also trays could have been made to stand taller so we could use a waterproof tray under it and still allow for air pruning. I am still looking forward to seeing how well they perform.

from IL

Deep root trainer


I have to disagree with the first one. Yes they are flimsy but I will be able to use them again this year and have started some of my seeds. An extra tray would be helpful for watering as I have to find a tray to put them after watering if I want to use the cover till they sprout.

from MI

You get what you pay for!


I would give it a ZERO but not on the rating chart. Flimsy as could be. Maybe get one season out of it. Could not get 8 books in the tray. No water reservoir base unless you use the dome which defeats its purpose for seedlings since there would be no heat or moisture retention without a dome cover. I would not recommend this product. Very disappointed.

Gardener's Edge responds:
Thank you for taking the time to communicate to us why our Rootrainers did not meet your expectations. We have every desire to address your needs and provide the best solution available to resolve your issue as soon as possible.

The Rootrainers are designed to allow for air pruning for optimal root formation. For this reason, the books should not stand in water for too long as the roots can grow in the water and prevent the air pruning process. It is recommended that the lid be removed for watering and placed under the tray to catch excess water. After the water has drained adequately the lid should be flipped over and used as the lid again. This method will provide the best results for optimizing your seedlings root system.

We appreciate you expressing your thoughts on this product and will look at how we can better illustrate the details of these products so customers are better aware of how they work and what to expect.

At Gardener’s Edge we want our gardening friends to be happy with their purchase. If this product does not meet your satisfaction we would be happy to make arrangements for a return and a full refund.

Best regards,
Your Gardener’s Edge Team

from PA

Little Flimsy but does a great job


These are great for starting Swamp, Common, and Poke Milkweed as they tend to have a long taproot even as seedlings. With these Rootrainers little disturbance to that root will be a plus. They are a little flimsy so care will be needed to get a long life from them.