2025 New Spider Farmer 121 X 52cm Seedling Heat Mat With 4 Pack Seed Starter TraysYour seeds will only germinate if provided with the right environment. Seeds need to be warmer than room temperature (75 80F) to sprout, so using a heat mat along with Seed Starter Trays can greatly increase your germination rate. Spider Farmers Seedling Heat Mat warms the root area of Seed Starter Trays by 50 77F above the ambient air temperature, significantly enhancing the germination process and improving the success rate of seedlings and