Seedling Heating Mat (Two 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.

Increase your success with seed germination, seedlings and cuttings by warming the root area up to 10–20°F over the ambient temperature using heat mats. Available in sizes to accommodate one, two or four planting flats. Light, watering and planting information printed on mat.

Its internal insulated wiring and heavy-duty, multi-layer, waterproof construction provide enhanced safety and long-lasting performance. The durable 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.

Check out the One Flat size as well, or explore more seed-starting and propagation tools in our Tools & Equipment collection.

• Dimensions: 20" W x 20" L
• Power Cord Length: 6 ft (UL listed)
• Temperature Increase: 10–20°F above ambient
• Uses: Seed germination, homebrewing, pet enclosures
• Construction: Waterproof, durable materials with printed care guidelines