5.0
Rated 5.0 out of 5 stars
15 Reviews

Heat Mat for Seed Starter Kits

This water-resistant heat mat offers consistent heat for young seedlings seedlings to encourage quicker germination. It fits perfectly under a single GreenStalk Seed Starter Kit. 

  • Soft heat source that gets up to 104 degrees with ambient temperatures between 68-77 degrees
  • Strengthened heating film ensures this durable mat never scorches your roots and produces lots of revitalizing dew when used with a humidity dome.
  • Runs on only 40 watts
5.0
Rated 5.0 out of 5 stars
Based on 15 reviews
Total 5 star reviews: 15 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
Slide 1 selected
15 reviews
  • TT
    Tahney T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Mar 4, 2026
    Perfect Fit

    This heat mat fits the seed starter kit perfectly.

  • LM
    Lorelei M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Feb 23, 2026
    Hives heat mat

    The size of the heat mat is huge and fits the seed tray. My question is will the heat from the mat make it thru the layers to warm the soil.

  • CK
    Cheryl K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Feb 9, 2026
    Heat Mat

    The large size is working great for germination. Mine is in use and is working out well.

  • JW
    JEANNINE W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Feb 9, 2026
    Heat mat

    Great product. Provides heat for starting seeds as you work to grow your garden.

    🪴 2/09/2026

  • LW
    Linda W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Feb 2, 2026
    ADDED WHAT WAS NEEDED FOR MY STARTERS

    I've been a Greenstalk customer for years. I love the product and this year I changed it up by starting my own seeds while the weather was still chilly outside. The heating mat has worked wonders for me to get my plants started. I'm excited for this year's growing season.

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