Grodan Gro-Smart Tray 78 Cell Starter Plug Tray
Best versatile tray for indoor hydroponic seed starting and propagation.
The Grodan Gro-Smart Tray Insert is designed to perfectly house your Grodan Starter plugs, Mini-Blocks, and Gro-Blocks. This durable Dutch tray features a double-sided design, with one side accommodating 78 cells for 1.5-inch A-OK Starter Plugs or round Macroplugs, and the other side featuring a mesh for sheets of A-OK's, Mini-Blocks, or Gro-Blocks. It fits standard 10 x 20 flats, keeping your Grodan products elevated. The tray is easy to sanitize and is even dishwasher safe, making it a convenient and essential tool for growers.
$13.45
Owner Satisfaction
4.7
/ 5
Category Rank
10
/ 611
#10 in Garden Pot Saucers & Trays
Price vs Category Average
-78%
Below average
Who it's for
- Serious growers seeking consistent and rapid root development
- Hydroponic gardeners prioritizing minimal transplant shock
- Efficiency-minded propagators looking for durable, reusable equipment
Who should skip it
- Eco-conscious gardeners avoiding non-biodegradable synthetic materials
- Beginners wanting a simple, ready-to-use planting medium
- Budget-conscious hobbyists preferring low-cost propagation methods
Performance breakdown
Versatility
Double-sided design seamlessly handles both individual plugs and full block sheets.
Durability
Hard plastic construction withstands repeated use in demanding greenhouse environments.
Sanitation ease
Dishwasher-safe material makes sterilization between growth cycles incredibly simple.
System compatibility
Perfectly engineered to integrate with standard 10x20 flats and Grodan media.
Drainage efficiency
Elevated design promotes optimal airflow and prevents water pooling under plugs.
Build quality
Robust Dutch manufacturing ensures a reliable fit for professional propagation setups.
Key Specs
Fits standard 10 x 20 flat
Dishwasher safe
Terra-cotta colored
Dimensions
10 L x 20 W x 1.5 in. H
Cell Count
78-cell
Material
Hard plastic
Features
- Double-sided design for versatile plug and block fitting
- Elevates Grodan products within standard flats
- Easy to sanitize and dishwasher safe
- Designed and exclusively manufactured for Grodan
- Double-sided functionality for versatile plug and sheet compatibility
What customers say
Customers consistently praise the Grodan Gro Smart Tray for its exceptional ease of use, making seed starting simple even for beginners. The preformed 78 cell plugs offer reliable moisture retention, leading to high germination success rates. Growers appreciate the quality construction and the convenience of having a ready to go system. This product delivers consistent results, establishing it as a trustworthy foundation for successful plant propagation.
Know before you buy
Yes, the Grodan Gro-Smart Tray is specifically designed to drop into standard 10x20 flats, providing a stable, elevated base for your plugs and blocks.
One side of the tray features 78 individual cells molded to hold 1.5-inch A-OK Starter Plugs or round Macroplugs. If you flip the tray over, the other side provides a flat mesh surface designed to support sheets of A-OKs, Mini-Blocks, or Gro-Blocks.
Yes, it is constructed from a hard, rigid plastic that is built to last through multiple growing cycles. Because it is dishwasher safe, you can easily sanitize it between crops to maintain a clean environment for your seedlings.
Absolutely. By elevating your Grodan plugs and blocks above the bottom of the flat, the tray promotes better airflow and prevents your media from sitting in excess water, which helps prevent root rot.
While the tray is engineered specifically for Grodan products, any starter plug or block that matches the dimensions of the 78-cell configuration or the flat mesh side will work. However, it is optimized for the exact fit of Grodan's standard plug sizes.
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