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Heat Mat – Large*

(5 customer reviews)


Warm soil leads to more seeds germinating and more quickly.

Want a smaller Heat Mat? Click here!

Checkout our Seed Starting Course!

In stock

Seed Starting Heat Mat - Large *

  • Seed starting heat mat 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 640 small blocks, 20” x 48”.

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 shipping details:
Zone 1-2 $ 7.71, zone 3 $ 8.20, zone 4 $8.81, zone 5 $10.03, zone 6 $13.75, zone 7 $15.59, zone 8 $17.61
Find your shipping zone and read our shipping policy here.

5 reviews for Heat Mat - Large*

  1. Robyn W. (verified owner)

    usNew Jersey, United States

    So far, so good with the large heat mat. No complaints.

  2. Anonymous (verified owner)

    usUnited States

    Good seed starting mat, and a great size. The only problem is my cat also loves it.

  3. Erica Keith (verified owner)

    usGeorgia, United States

  4. Krista Dean (verified owner)

    usUnited States

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