Heat Mat

Seed Starting Heat Mat - Small or Large*

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.

• 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
• Small mat can support 3 trays (from 120-180 small blocks), 9” x 19”
• Large 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.

*Shipping Notice: Due to the size, shape, or weight of this item, additional shipping charges apply. Final shipping costs will be calculated at checkout.