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Heat Mat – Small

(10 customer reviews)


Warm soil leads to more seeds germinating and quicker.
Want a larger heat mat? Click here!

Check out our Seed Starting Course!

In stock

Seed Starting Heat Mat - Small

The most common reason seeds don't sprout indoors is because the soil is to cool. Sow seeds, place tray on heat mat, leave there until 50% of seeds begin to sprout. Then move to 16 hours of light a day until moved outdoors.

  • Seed starting heat mat has a built-in thermostat that maintains soil temperature 15-20 degrees above room temperature.
  • Warm soil leads to more seeds germinating and more quickly.
  • Grows bigger, healthier plants.
  • Mat can support 3 trays  (from 120-180 small blocks), 9” x 19”.

Here is what customers are saying about how soil blocking has changed their seed starting experience.

Click here for more soil blocking tips and videos.

Additional information

Weight 1.25 lbs
- Size


10 reviews for Heat Mat - Small

  1. Ashley Johnson (verified owner)

    usTennessee, United States

  2. Beth Harris (store manager)

    I LOVE the blocking method and have two blocks of lettuce on my warming mat right now. I’m so glad I’m taking the Master Gardener’s class because I may not have ever known about this, otherwise. Your lecture was wonderful and so informative, and I love your “store” – great products!
    Beth Harris

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