RooTrimmer 40-Cell Deep Seed Starter Trays – 10 Pack for 1020 Flats

Overview

Meet RooTrimmer 40-Cell Deep Seed Starter Trays, a rugged, extra-deep solution designed to support seedlings from germination to transplant. Each tray holds 40 cells, with a depth of 3.93 inches and a cell top measuring 2.1 inches by 1.8 inches, providing generous soil volume for seedlings as they take root. Built to pair with RooTrimmer 1020 flats, these trays fit seamlessly into a standard propagation workflow, helping you establish a reliable setup for seeds and young plants.

In practice, the larger cell volume translates into a longer germination window and a steadier supply of water and nutrients for each plant. The deep cells accommodate more soil and encourage robust root systems, which many gardeners find beneficial when starting taller or vigor-forward varieties. The size and shape also support efficient transplanting when you’re ready to move seedlings to larger containers or garden beds.

Key benefits at a glance

• Deep, 3.93-inch cells that hold more soil for extended moisture retention and root development.
• Big-cell design in a 1020 insert tray that encourages longer nursery periods without crowding.
• Durable 1 mm thick plastic built to withstand repeat use and transport indoors or in a greenhouse.
• Efficient drainage with bottom holes and top guide channels to promote even watering.
• Wide compatibility with standard 1020 flats, simplifying organization and workflow across props and staging areas.

Smart design details

• Bottom drainage prevents overwatering while top channels help water reach every cell.
• Rugged plastic construction supports daily handling, cleanup, and stacking without warping.
• Note: Keep out of direct sunlight to preserve the tray's integrity during storage and use.

Ideal uses and applications

This set is versatile for starting flowers, vegetables, and herbs, as well as propagation efforts and seed germination experiments. Its deep cells are especially helpful for enthusiasts who want a longer head start before transplanting into larger flats or pots.

What you get

A 10-pack of RooTrimmer 40-cell seed starter trays designed to integrate with RooTrimmer's 1020 ecosystem. These trays are intended for indoor or greenhouse propagation and are compatible with common 1020 inserts to streamline your grow space.