Super Sprouter® Seedling Heat Mat 21×10

Product Code: HGC726695

Availability:Out of stock

In-Store Location: @K6

Heat your clones with the Super Sprouter Heat Mats

Helps gardeners have better success rates with seedlings and cuttings by warming the root area approximately 10–20° F over ambient temperature to improve germination process. More consistent heating with fewer hot spots than other seedling heat mats. More than 20% larger than competitive mats with the Ed Hume seal of approval

3 different options of Seedling Heat Mat:

  • 1 Tray - 10 in. x 21 in.
  • 2 Tray - 12 in. x 48 in.
  • 4 Tray - 21 in. x 48 in.


  • Place mat on dry surface.
  • Plug the mat into a stadard 120 Volt power outlet
  • Put your seed flat directly on the warm mat

Helpful Tips

  • The mat is designed to warm the temperature of the rooting area 10 - 20 degrees F above the ambient air temperature
  • For best results, locate on a counter top or shlef instead of a cold & drafty floor
  • Using a clear dome with your seed tray will help maintain temperature and humidity
  • You can purchase a thermostat sperarately if you would like exact temperature control
  • If you would like to slightly reduce the temperature of your growing media, you can place your tray on two pencils lifting the tray about 3/8" off the mat.