RooTrimmer Seed Starter Trays 10-Pack - 16.5x13.2in Black, Deep Stackable Plastic for Microgreens

RooTrimmer Seed Starter Tray 10-pack are deep, durable, stackable plastic seedling trays sized 16.5" x 13.2" designed for starting seeds, microgreens and nursery plants indoors or in greenhouses.

These trays provide a reusable, lightweight solution for gardeners, growers and hobbyists who need consistent, contained growing space for seedlings, microgreens or soil mixes. Molded from PS polystyrene, each tray is deeper than many competitors’ options and intentionally built without drainage holes for hydroponic or microgreen setups. Sold in a set of 10 black trays, they fit on standard greenhouse benches and shelving while stacking neatly for storage or transport.

How do these trays make starting seeds or microgreens easier?

The RooTrimmer trays give you larger soil volume and stable containment so seedlings develop steady root systems and microgreens establish uniform growth. Their depth keeps potting mix, water and fertilizer contained, reducing spills and mess.

• Deep 2.8" walls for improved root space and less spillover
• No drainage holes ideal for hydroponic or tray-based microgreen production
• Uniform flat base supports even germination and easy labeling
• Black color helps retain warmth for faster germination

What makes the construction and materials suited to repeated use?

Built from PS polystyrene, these trays are lightweight yet tough enough for repeated cycles of planting, cleaning and storage. The material resists warping and stays dimensionally stable when handled or stacked.

• Durable PS polystyrene that withstands frequent handling
• Lightweight design for easy moving between benches or shelves
• Smooth surfaces rinse clean for fast turnover between crops
• Stackable shape reduces storage footprint when not in use

Can I use these trays for both indoor and greenhouse growing?

Yes — the trays are versatile for indoor windowsills, grow-light setups and greenhouse benches. Their size fits common bench systems and the enclosed base works well for tray-to-tray propagation or bench hydroponics.

• Compatible with greenhouse benches, seed racks and shelving
• No-drain design suitable for controlled watering or hydroponic mats
• Ten-tray pack supports multiple batches or varieties at once
• Easy to move or stack for climate control and staging crops

How do I care for and maintain these growing trays?

Maintaining the trays is straightforward: empty used soil, rinse to remove residue, and sanitize between crops for best results. Because the trays are reusable, regular cleaning extends their lifespan and helps prevent pathogens.

• Empty and brush out loose soil after each use
• Rinse with water and mild detergent; disinfect as needed
• Store nested in a dry place to avoid warping or sun damage
• Inspect for cracks before reuse; replace if damaged

Who is this for: RooTrimmer Seed Starter Tray 10-pack is aimed at home gardeners, microgreen growers, small-scale nurseries and anyone who needs an economical, reusable tray system that saves space and simplifies seed starting. If you want consistent germination, tidy bench management and trays that withstand repeated cycles, this 10-pack provides dependable capacity and easy storage for hobbyists and small commercial growers alike.