Seedling Heating Mat (One Flat Size)

The One Flat Seedling Heating Mat delivers gentle, even warmth at the root zone to speed germination and boost success rates. It raises root-area temperature 10 to 20°F above ambient, helping vegetables, herbs, and flowers get started in cooler conditions. Insulated internal wiring, heavy-duty multi-layer construction, and a waterproof surface make it safe for greenhouses, propagation areas, and indoor setups.

At a glance

• Size: 10 by 20.5 inches (one flat capacity)
• Power: 17.5W
• Cord length: 5.90 ft
• Temperature increase: 10 to 20°F above ambient
• Surface: Waterproof, heavy-duty multi-layer build
• Uses: Seed germination, homebrewing, pet enclosures

Best for

• Starting a single seed tray
• Improving germination in cool rooms or greenhouses
• Warming heat-loving crops like peppers and tomatoes
• Homebrewing fermentation warmth
• Reptile, rodent, and terrarium enclosures

How to use

Set the mat on a flat, stable surface and place your 1020 tray on top. Plug it in to hold a steady root-zone temperature 10 to 20°F above the room. Wipe the waterproof surface clean as needed, and add a thermostat if you want to hold a precise target.

About Grow Organic

Grow Organic supplies seeds, tools, and natural growing products for home gardeners and small farms, with a focus on organic and earth-friendly solutions.

Sold by Grow Organic, based in Grass Valley, California.