Sub-Irrigation System

Plug Tray & Flat Compatibility

Pair T.O. Plastics plug trays with our standard flats, germination tray, or display flat without drainage holes for sub-irrigation watering. Add either the 2-inch or NEW 7-inch humidity dome for all-in-one growing system!

Sub-Irrigation & All-In-One Growing System

• Great for indoor growing where floor drainage is not available.
• Results in more uniform plant growth and less foliar disease.
• Reduced overall water usage.
• Improved fertilizer-use efficiency.
• Higher seed germination rate from a consistent soil moisture.
• Labor and time savings for less frequent watering.
• Less shrink with consistent watering across all cells.
• Create all-in-one growing system with humidity dome!

Select plug trays shown with 1020 standard flat, germination tray, or display flat without drainage holes to achieve sub-irrigation watering. Additional combinations available with 2-inch or 7-inch humidity dome to create controlled growing environment. Full compatibility chart with T.O.P. product combinations available.

Contact our horticulture team to determine best sub-irrigation watering method and humidity control option for your growing needs.