Skip to product information
1 of 3

thegardenersworkshop

Heat Mat

Heat Mat

Warm soil leads to more seeds germinating and quicker.

Check out our Seed Starting Workshop!

Regular price $39.95 USD
Regular price Sale price $39.95 USD
Sale Sold out
- Size

SKU: SKU:P405

View full details

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.

  • 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.
  • 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.


*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.

Weight: 1.25 lb