Seedling Heating Mat (Four Flat Size)

Consistent warmth at the root zone can make all the difference for seed germination, and this seedling heating mat delivers gentle, even heat to encourage strong early growth. Designed to raise the root area temperature by 10–20°F above ambient conditions, it helps speed germination and improves success rates for vegetables, herbs, flowers, and other plants, especially in cooler growing environments.

Its internal insulated wiring and heavy-duty, multi-layer construction provide enhanced safety and long-lasting performance. The waterproof surface makes it safe to use in greenhouses, propagation areas, and indoor garden setups. While ideal for seed-starting trays, it’s also a versatile tool for homebrewing projects or providing warmth in pet enclosures and terrariums for reptiles, rodents, and arachnids.

Easy to set up and energy-efficient, this mat ensures a steady, reliable temperature to support healthy root development. Whether starting your garden early or keeping small animals comfortable, it’s a dependable addition to your growing or hobby space.

Find more seed-starting and propagation tools in our Tools & Equipment collection.

• Dimensions: 48" x 20"
• Power: 100W
• Power Cord Length: 5.90 ft
• Temperature Increase: 10–20°F above ambient
• Uses: Seed germination, homebrewing, pet enclosures