AAAmercantile Seed Starter Trays 600 DEEP Extra-Large 3" Deep 6-Cell Pack of 100 — Deep Root Development, Easy De-potting

AAAmercantile Seed Starter Trays 600 DEEP are extra-large, 3" deep 6-cell trays sold as a pack of 100, designed to produce larger root balls for easier, healthier transplanting.

These lightweight, flexible plastic trays provide deeper growing space than typical starter cells, letting roots develop more fully before transplant. Each cell measures 2 1/2" wide × 2 1/4" long × 3" deep, and each 6-cell tray measures 7" × 5", so six trays neatly fit inside a standard 10"×20" (1020) nursery flat. They’re intended for robust starts and simple de-potting and are commonly treated as single-use although careful handling can extend their life.

How do deeper cells improve seedling success?

Greater depth gives roots room to grow downward rather than circling at the soil surface, producing sturdier root systems that handle transplanting stress better. Deeper root volumes also retain moisture more evenly and reduce frequent watering needs compared with shallow cells.

• 3" depth encourages deep root development for stronger transplants
• Cell dimensions fit a wide variety of vegetable, herb, and flower seedlings
• Reduced root-binding and easier root inspection when repotting

Are these trays easy to remove seedlings from?

The trays are made from a lightweight, flexible plastic that allows for easy gentle squeezing and de-potting without damaging young roots. The smooth interior and extra depth make lifting seedlings with intact root balls simpler than with rigid or shallow trays.

• Flexible plastic permits safe pressure release to free root balls
• Smooth cell walls minimize root entanglement and soil sticking
• Cell size supports root ball integrity for easier transplanting

How do these trays fit into standard nursery workflows?

Each 6-cell unit measures 7" × 5", and six trays fit into a standard 1020 nursery flat for efficient propagation, staging, and transport. The uniform sizing makes them simple to integrate with heat mats, greenhouse benches, and automated tray handlers used in small-scale and hobby operations.

• Six trays per 1020 flat for predictable spacing and organization
• Compatible with common propagation accessories and benches
• Lightweight construction keeps shipping and handling costs lower

Can these trays be reused, and how should I handle them?

These trays are typically sold as single-use but can be reused if handled carefully and cleaned between cycles. Avoid harsh bending, allow soil to dry before removal, and sanitize to reduce disease carryover when attempting multiple uses.

• Consider single-use for commercial reliability; reuse for hobby projects
• Dry soil before removal to prevent cracking or tearing the plastic
• Sanitize with a mild bleach solution between uses to prevent pathogens

Who is this for: AAAmercantile’s 600 DEEP 6-cell trays are aimed at gardeners, small nurseries, seed-starting enthusiasts, and growers who want larger, healthier root systems before transplanting. They suit anyone propagating vegetables, herbs, ornamentals, or liners who values deeper root space, easy de-potting, and straightforward integration with standard nursery flats.