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Grow1 Super Sprouter 72-Cell Plug Insert Tray - 10" x 20"

Official Grow1 Dealer Model: CN726410
  • This tray provides 72 individual cells for high-density propagation in a single 1020 footprint.
  • The patent-pending star pattern optimizes root contact and air-to-water ratios for loose media.
  • These inserts fit inside any industry-standard 1020 propagation flat or humidity dome.
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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are choosing specific cell shapes because different media types need better air to water ratios.
  • You are using the tear-away cells because you need to transplant finished starts without shocking the whole tray.

What We Found

  • The star pattern is the one to get if you use loose soilless mix since it helps prevent the media from compacting.
  • We noticed the tear-away seams are clean enough that you can separate cells without accidentally cracking the walls.

What Users Say

  • Users who mix varieties in one flat say they stopped disturbing slow growers by tearing away only what is ready.
  • Operators using the star pattern report that their root systems are more uniform compared to standard round cells.

Grow1 Super Sprouter 72 Cell Plug Insert Tray

The Grow1 Super Sprouter 72 Cell Plug Insert Tray is designed for growers who value precision and customization in their propagation process. Recognizing that different plants and growing media require different environments, Super Sprouter offers a variety of cell geometries—including square, round, and their innovative patent-pending star pattern. This variety allows you to select the perfect shape to accommodate your specific grow media, whether you are using loose soilless mix, coco coir, or specialized starter plugs.

For those managing diverse crops simultaneously, these trays offer exceptional versatility. The design includes a convenient tear-away option, much like the Grow1 72-Cell Break-A-Part Seedling Tray, making it simple to mix and match different plant varieties within a single footprint or to separate specific sections for transplanting without disturbing the remaining seedlings. This modular approach streamlines your workflow and reduces transplant shock by allowing for cleaner handling of individual root balls.

Engineered to be a seamless addition to your existing nursery setup, all Super Sprouter 72 Cell Inserts are designed to fit perfectly into industry-standard 10" x 20" propagation trays. Whether you are using them under humidity domes or on heat mats, these inserts provide the professional-grade structure needed for uniform germination and healthy, vigorous early-stage growth.

Features

📐
Custom Cell Shapes

Available in square, round, and star patterns to optimize root contact and air-to-water ratios for your specific grow media.

✂️
Tear-Away Versatility

Easy-to-separate sections allow you to customize your tray layout or remove specific seedlings for transplanting with ease.

📦
Standard 1020 Fit

Universally compatible with all standard 1020 propagation flats, heat mats, and humidity domes.

🌿
Uniform Growth

High-density 72-cell layout ensures even moisture distribution and light exposure across all your starts.

Specifications

Specification Value
Tray Footprint 10" x 20" (Standard 1020)
Cell Count 72 Cells
Cell Shapes Square, Round, or Star Pattern
Special Features Tear-away / Separateable Sections
Material Durable Horticultural Plastic
Compatibility Standard Flats & Humidity Domes

FAQ

What is the benefit of the star pattern cell? +

The patent-pending star pattern is designed to provide extra surface area and "air-pruning" channels. This encourages roots to grow more vertically and prevents them from circling as quickly as they might in a standard round cell.

How does the tear-away feature work? +

The tray is manufactured with perforated or thin-scored lines between certain cell groups. This allows you to snap off a section (like a 6-pack or 12-pack) to move to a different area of your garden or to give to a friend without having to cut the plastic with shears.

Do these inserts come with a base tray? +

No, these are "inserts" only. They are designed to be placed inside a standard 1020 flat without holes or a tray with drain holes which serves as the carrying tray and reservoir for your water.

What media works best with the 72-cell count? +

The 72-cell size is ideal for standard 1.5" rockwool cubes, peat pellets, or loose seedling mix. It provides the perfect balance between high-density production and enough soil volume for a strong start.

Are these trays reusable? +

Yes. While these are lighter than the Grow1 double thick propagation tray models, they are made from quality horticultural plastic that can be washed and sanitized for several growing seasons if handled with care.

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Questions About This Product?

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Call (360) 800-5535

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