Viagrow Seed Propagating Seedling Heat Mat-VSEEDMAT20 - The Home Depot


Model # VSEEDMAT20

Internet # 203357025

Seed Propagating Seedling Heat Mat

Viagrow Seed Propagating Seedling Heat Mat

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

$41.99 / each


Model # VSEEDMAT20

Internet # 203357025

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 2 standard size seed trays
  • High quality, water resistant construction
  • May be used with a compatible thermostat for temperature control
  • Size is 20.5 in. x 20.5 in.


Assembled Depth (in.)  20.5 in  Assembled Height (in.)  .25 in 
Assembled Width (in.)  20.5 in  Product Depth (in.)  20.5 
Product Height (in.)  0.25  Product Width (in.)  20.5 
Landscape Supply Type  Seeds  Returnable  90-Day 
Seed Type  Seed Starter Kit 


Rated 4.5 out of 5 by 6 reviewers.
Rated 4.0 out of 5.0 by works good out of box. I was expecting a flat packaging but came in a box circled and was afroid if it will work. It worked as intended. Seeds are coming out sooner than otherwise would have. Time will tell durability. Will recommend. Seems very costly for the small mat area. Cost should be reduced February 25, 2015
Rated 5.0 out of 5.0 by Greenhouse item I hope Home Depot will keep this in stock...hard to find ANY locally....had to buy online. February 25, 2015
Rated 5.0 out of 5.0 by Works As Advertised - Seedlings Love It This is my first year starting my own seedlings. This heat mat is a good size for a couple of trays. It was simple to just plug it in and let it go. The seedlings took off. I read about external thermostat controls, but I did not see any need for extra pieces. The mat does a great job all by itself. I liked the bigger size (large enough for two trays) instead of the single tray size. It gave me more flexibility. I actually started one full-size tray, and then a week later started a second half tray, and then a third half tray. I would buy it again. March 18, 2014
Rated 3.0 out of 5.0 by works when its not broken. I like the product and it does work. But after a week of use it just quite working. So I'm giving another one a try and see if it stop working again. January 14, 2014
Rated 5.0 out of 5.0 by What a difference! The seedling heating mat worked great. I had never had really good results with starting my vegetable seeds indoors prior to using this. It never occurred to me that the potting soil might not be warm enough. Home Depot had the best price of all the places (online and otherwise) that I checked. Highly recommended! May 19, 2013
Rated 5.0 out of 5.0 by A tremendous help in seed germination. I use this device to warm the Jiffy Pods during germination. While I haven't taken any temperature readings, this heating pad works very well and I had 95% germination success. It is well made, durable and very easy to use--just plug it in. January 28, 2014
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