PlantBest – 10 × 20 Seedling Heat Mat

The PlantBest 10 × 20 Seedling Heat Mat provides consistent, gentle bottom heat to improve seed germination and early root development. Designed to sit beneath standard seed-starting trays, it helps create the warm soil conditions seeds actually want—especially useful in cool rooms or early-season growing.

Why You’ll Love It

• Provides steady bottom heat for improved germination
• Can increase germination rates by up to 40%
• Fits standard seed-starting tray sizes
• Ideal for early-season and cold-climate growing
• Certified to meet Canadian electrical standards

Size & Compatibility

• Mat Size: 10" × 20"
• Fits one 10" × 20" greenhouse or seed-starting kit
• Also fits two 5" × 20" greenhouse kits
• Designed to be placed under a seed-starting tray

Use & Performance

• Creates a warm, consistent root-zone environment
• Supports faster, more uniform seed germination
• Recommended for use with humidity domes and seed trays

Safety & Certification

• Certification: ETL certified
• Meets Canadian Electrical Standards
• Designed for indoor household use

Good to Know

• Use according to manufacturer instructions
• Do not submerge in water
• Seeds, trays, and plants not included

Simple, reliable bottom heat—because cold soil doesn’t care how expensive your seeds were.