RooTrimmer Deep 72-Cell Seedling Trays (10-Pack) — 21.25"×11", 2.36" Deep Heavy-Duty Reusable Cells for Stronger Roots

RooTrimmer Deep 72 Cell Seedling Trays are heavy-duty, deep plug trays designed to give young plants extra root volume while fitting standard 1020 flat trays.

These 10-pack, 72-cell trays measure 21.25" × 11" with a 2.36" height and are molded for sturdiness and reusability. The larger, deeper cells hold more growing medium than typical shallow plug trays, which supports stronger early root systems and lets seedlings stay in the tray longer before transplanting. Built to pair with standard 1020 flats, they are also suitable for bottom watering and common greenhouse workflows.

How do these deep 72-cell trays help seedlings develop stronger roots?

The added depth and cell volume let roots grow downward and branch, rather than circling at the surface. That encourages a more robust root mass, improving early-stage nutrient and water uptake without frequent transplanting.

• 2.36" cell depth increases soil volume per cell versus shallow plugs.
• Deeper profile reduces root coiling and allows longer nursery time.
• Large cell capacity helps retain moisture for consistent growth.

Will these trays fit my existing 1020 flat tray setup?

Yes — the trays are sized to nest inside standard 1020 flats while leaving enough clearance for easy handling. Their footprint of 21.25" × 11" matches common propagation flats so they integrate with greenhouse benches, flood-and-drain systems, and bottom-watering trays.

• Designed to pair with 1020 flat trays commonly used in nurseries.
• Fits standard 1020 flat height tolerance with 2.36" tray depth.
• Compatible with bench, tray, and bottom-water propagation methods.

What kinds of plants are best started in these big cell plug trays?

The larger cell volume is ideal for vegetables, fruit seedlings, and larger-flowering species that need extra space for root development. Use them for peppers, tomatoes, cucurbits, sunflowers, eggplants, strawberries, and other crops that benefit from a deeper root zone during propagation.

• Vegetables: tomatoes, peppers, cucumbers, eggplants, melons.
• Flowers and ornamentals that need larger root systems early.
• Small fruit starts like strawberries and young berry plants.

How durable and reusable are RooTrimmer deep plug trays?

These trays are molded from thicker plastic to withstand repeated use across seasons while resisting warping and cracking. Their robust build supports stacking, handling, and routine cleaning between uses, making them a cost-effective choice for hobbyists and commercial growers.

• Heavy-duty construction for repeated seasonal use.
• Stackable design for neat storage and transport.
• Easy to clean for sanitation between propagation cycles.

Who is this for: Growers who need a reliable, deeper plug option—home gardeners expanding vegetable patches, small-scale nurseries, greenhouse operators, and anyone using 1020 flats for propagation. If you want seedlings that spend more time in a tray before transplanting, require better moisture retention, or need a sturdier reusable tray, the RooTrimmer Deep 72 Cell Seedling Trays provide a practical and economical solution.