Viagrow 20.5 in. x 8.5 in. Seed Propagating Seedling Heat Mat-VSEEDMAT at The Home Depot



Internet # 202985174

20.5 in. x 8.5 in. Seed Propagating Seedling Heat Mat

Viagrow 20.5 in. x 8.5 in. Seed Propagating Seedling Heat Mat

This item has been discontinued.
The Home Depot no longer carries this specific product.

$19.97 / each


In Stock




Internet # 202985174

Studies have proven that plants with a root zone that is kept warm thrive and propagate at a much faster rate than plants that do not. Simply place the Seedling Heat Mat on a flat, dry surface under a seedling tray and plug the cord into a 120 V outlet. For best results, use propagation dome over the seedling tray and keep it under T5 fluorescent lighting or in a greenhouse lighting environment. Direct sunlight or high HID lights may be too intense for seedlings.

  • Warms root area 10-20 above room temperature
  • Speeds germination and encourages strong root growth
  • Fits snugly under a standard size seed tray
  • High quality, water resistant construction
  • May be used with a compatible thermostat for temperature control


Assembled Depth (in.)  10 in  Assembled Height (in.)  .1 in 
Assembled Width (in.)  20 in  Landscape Supply Type  Seeds 
Returnable  30-Day  Seed Type  Seed Starter Kit 


Rated 4.7 out of 5 by 39 reviewers.
Rated 5 out of 5 by Fast germination Wy wife planted bok choy, arugula and spinach on Dec. 10. The heat mats arrived Dec. 16. From the original planting the bok choy did not sprout. Replanted and on the heat mats it came up evenly in 3 days. This is a very worthwhile apparatus if you like fresh winter produce as much as we do. December 25, 2012
Rated 5 out of 5 by Works great Inside temp was 65deg with the seedling heat mat seeds had sprouted in three days. Another tray of seeds took 8 days to sprout without the heat mat. I will get more mats for early spring planting. December 10, 2013
Rated 5 out of 5 by Works well. I have been using these heating mats for 3 months now. I use them constantly to heat up my Kombucha while it is fermenting. No problems at all! And my digestion is Great! November 28, 2012
Rated 5 out of 5 by Glad I purchased these I use these in my house,(I keep house very cool) shelves are metal racks I think the heating pads were challenged in keeping seed trays warm, when I stacked my seed trays on something to get them closer to the lights (piles of news paper) then they kept seed trays warm, plants love these I'am having great results. April 2, 2013
Rated 5 out of 5 by Works fine economical replacement for similar smaller pads sold at pet shops Works well. For the price the size is excellent. At a pet shop one quarter the size costs the same. Doesn't overheat. Have it under pyrex to prevent the turtle from a contact burn though since it doesn't overheat doesn't seem to be a problem. Still if used for and animal put some glass between it and the user. November 11, 2014
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