Grodan Gro-Smart Tray 78 Cell - Dual Sided - Fits 10in x 20in Flats

One Propagation Tray, Two Configurations for Grodan Substrate

The Grodan Gro-Smart Tray is a precision propagation tray built to work directly with Grodan's starter plugs and blocks, and its dual-sided design means one tray covers two distinct jobs. Flip to the 78-cell side to hold 1.5in A-OK Starter Plugs or Macroplugs in individual cells, or flip to the open mesh side to hold sheets of A-OK Starter Plugs, Mini-Blocks, or Gro-Blocks.

Sized to fit standard 10in x 20in flats, it drops directly into existing propagation infrastructure and watering systems without adapters, and it's sold by the case of 5 for commercial-scale propagation operations.

Key Features & Benefits

• Dual-Sided Versatility: One tray, two configurations — 78-cell side for individual plugs, mesh side for sheets and blocks.
• 78-Cell Capacity: Holds 78 individual 1.5in A-OK Starter Plugs or Macroplugs in organized cells.
• Fits Standard 10in x 20in Flats: Drops into existing propagation trays and watering infrastructure.
• Heavy-Duty Reusable Plastic: Withstands repeated use and standard greenhouse cleaning procedures.
• Sold by the Case of 5: Reduces per-unit cost for commercial-scale propagation.

Who Should Use This

Commercial propagators, hydroponic growers, and research facilities running Grodan substrate systems who want a precision tray built to work directly with Grodan starter plugs and blocks at every propagation stage are the direct fit for the Gro-Smart Tray.

About Grodan

Grodan, founded in 1969 and part of the ROCKWOOL Group since, is credited with inventing hydroponic stone wool growing media and builds trays and hardware around its own plug and block dimensions.

Frequently Asked Questions

How do I clean the Gro-Smart Tray between crop cycles?

Remove all media and root debris, then wash with warm water and a mild cleaning solution. Follow with a diluted bleach or commercial greenhouse disinfectant rinse to sanitize before the next cycle.

Can I use non-Grodan plugs or blocks in this tray?

The tray is sized specifically for Grodan 1.5in A-OK Plugs and compatible Grodan block formats. Other brands' plugs of matching dimensions may fit the 78-cell side, but verify dimensions before use to ensure a secure placement.

Which side should I use for cloning versus seed germination?

Both sides support either application depending on your plug or block format. The 78-cell side is typically used for individual plugs during cloning and seed germination, while the mesh side accommodates sheet-connected plugs and blocks.

Does the tray work with automated propagation equipment?

Its 10in x 20in flat compatibility makes it suitable for automated seeding, transplanting, and misting systems built around the standard 1020 tray format. Verify your specific equipment's compatibility before relying on it at scale.