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Grow1 Speedy Root 32-Cell Plant Starter Tray with Media

  • 32 extra-deep cells provide 3.5 inches of vertical room for aggressive taproot development
  • Proprietary peat and perlite blend engineered for a specific air-to-water aeration ratio
  • Cells measure 2 x 2 x 3.5 inches to fit standard propagation trays without drain holes
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are switching to extra-deep cells because shallow inserts cause taproots to circle and stunt early development.
  • You are using pre-formed peat plugs because hand-filling trays with loose mix leads to uneven moisture and aeration.
  • You are choosing a 32-cell count because your plant material needs more room to spread out before the first transplant.

What We Found

  • We like the 3.5 inch depth because it gives you a much longer runway for taproot growth before transplanting
  • The plugs hold their shape even when soaking wet, so you won't have to clean up crumbled peat during transplanting

What Users Say

  • Growers who switched from standard flats say they see much less transplant shock thanks to the deeper root structure
  • Users who propagate in high-humidity domes report fewer mold issues because the peat blend drains so consistently

Grow1 Speedy Root 32 Cell Plant Starter Tray with Media

The Speedy Root 32 Cell Plant Starter Tray is a professional-grade propagation system designed to take the guesswork out of seed starting and cloning. While this 32-cell model is perfect for many growers, we also offer the Grow1 Speedy Root 50-Cell Plant Starter Tray for those needing higher capacity in the same footprint. Proudly made in the USA, this all-in-one kit provides the ideal biological environment for young plants to thrive.

The included media plugs are crafted from a proprietary blend of the finest quality peat and perlite. This combination is engineered to achieve the "golden ratio" of air-to-water, providing superior aeration while maintaining consistent moisture levels. Unlike standard soil mixes that can become compacted, the texture of these plugs encourages aggressive root branching, leading to hardier seedlings similar to those grown in our 72-cell deep seedling plug tray.

With extra-deep cells measuring 3.5 inches, this tray offers more vertical room for taproot development than standard shallow inserts. The 3.5-inch depth is designed to fit perfectly inside a Grow1 standard propagation tray with no drain holes to maintain consistent humidity. Whether you are growing in traditional soil or transitioning to a hydroponic system, the Speedy Root plugs remain structurally stable and transplant-ready.

Features

🧪
Optimal Air-to-Water Ratio

Peat and perlite blend ensures roots never suffocate while retaining the perfect amount of hydration.

📐
Extra-Deep 3.5" Cells

Deep vertical cells encourage long, healthy taproots and massive root branching for stronger starts.

Ready-to-Use Media

Includes 32 pre-formed plugs made of premium peat; for even higher density, consider the Speedy Root 102-cell starter tray.

🇺🇸
Made in the USA

Produced domestically with strict quality control to ensure a clean, pathogen-free growing environment.

Specifications

Specification Value
Cell Count 32 Cells
Media Type Premium Peat and Perlite Blend
Plug Dimensions 2" x 2" x 3.5"
Cell Depth 3.5" in
System Compatibility Soil and Hydroponic
Origin Made in the USA

FAQ

What is "Speedy Root" media made of? +

The media is a high-quality blend of natural peat and perlite. This mixture is specifically designed to provide high aeration and excellent drainage, which are critical for preventing damping-off in young seedlings.

Do I need to add fertilizer to the plugs? +

The plugs provide a neutral, clean base for starting roots. While seedlings have enough energy to sprout, you should begin a light nutrient regimen once the first set of true leaves appears.

Can I use this tray for clones as well as seeds? +

Yes, Speedy Root works excellently for both. The plugs offer the stability needed to hold cuttings in place and the moisture levels required for them to strike roots quickly.

Is this tray compatible with hydroponic systems? +

Absolutely. These are sized for compatibility with a USA-made propagation tray with drain holes for efficient water management without clogging pumps or systems.

How do I transplant the seedlings? +

Transplanting is easy. Once roots are visible on the outside of the plug, simply remove the entire plug from the tray and place it directly into a larger container, such as a 3.5-inch square black injection molded pot. This reduces transplant shock significantly.

Should I soak the plugs before planting? +

Yes, for best results, lightly moisten the plugs before inserting your seeds or cuttings. This ensures the media is fully hydrated and ready to support biological activity from the start.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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