seedling heat mat with biodegradable flat of marigolds

Heat Mats


Heat Mat, 19” x 9”
Item# 34-357

In Stock

Heat Mat, 20-3/4” x 20-3/4”
Item# 39-421

In Stock

Heat Mat, 48” x 20”
Item# 34-356

In Stock


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Additional Information

Bottom Heat Jump-Starts Your Seedlings

  • Heat Mats provide consistent bottom heat for fast germination and vigorous root growth
  • Can be used indoors or in greenhouse
  • Available in three sizes

These Heat Mats speed seed germination and stimulate root growth by keeping soil at about 70º F. Here's a clever extra — instructions and growing tips are printed right on the mat, so you can't lose them. 9" x 19" mat holds a standard seed flat. 20-3/4" square mat holds two standard seed flats. 48" x 20" mat holds 4 flats. All sizes have 6-ft power cords.

Product Details
  • Warms root area 10 to 20 degrees above ambient temperature
  • 19" x 9" mat is 20 watts
  • 20-3/4" square mat is 45 watts
  • 48" x 20" mat is 107 watts
  • 6' power cord
  • Please note: If you are ordering this item as a gift, there is a picture of the item on the outside of the package