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”.
View a sneak peak on how-to Seed Start with Soil Blocking
*Additional shipping: Zone A add $7.95, Zone B add $9.95. Please read our shipping policy here.