Ferry-Morse Heat Mat - 10in x 20in - 17.5 Watt

Ferry-Morse Heat Mat - 10in x 20in - 17.5 Watt - Seed Germination Bottom Heat for Standard 1020 Trays

The Ferry-Morse Heat Mat provides consistent bottom heat to improve seed germination rates and give seedlings a faster, more reliable start. Operating at 17.5 Watts, this mat maintains the root zone at the elevated temperature range that speeds germination for vegetables, herbs, flowers, and other warm-season crops. Designed for use with 11in x 22in propagation trays. For indoor use only.

Key Features & Benefits

• Improves Germination Rate: Elevated root zone temperature accelerates the enzyme activity that triggers germination - more seeds sprout and they sprout faster than at typical room temperature.
• 17.5 Watt Output: Efficient, consistent heat output sized for standard 1020 tray propagation setups - warms growing media without overheating sensitive seedlings.
• Designed for 11in x 22in Trays: Sized to work with standard propagation trays for bench-top seed starting setups.
• Promotes Uniform Germination: Consistent heat across the mat surface promotes even germination timing across an entire tray - fewer stragglers, more uniform crop batches.

Who Should Use This

Ideal for home gardeners and small-scale growers starting warm-season vegetables, herbs, and flowers indoors during cooler months. Particularly effective for crops like tomatoes, peppers, eggplant, basil, and cucumbers that germinate poorly at room temperature during winter or early spring. Useful any time ambient growing space temperatures fall below the optimal germination range for the crops being started.

Compatibility

The Ferry-Morse Heat Mat is designed for indoor use only and is intended for use with 11in x 22in propagation trays. Compatible with standard propagation tray inserts, plug trays, and humidity dome systems. For precise temperature control, pair with a compatible thermostat (sold separately). Use with seed-starting mix, plug media, peat pellets, or other standard germination substrates.

Frequently Asked Questions

How much does this mat raise the growing media temperature?

Heat mats of this type typically raise growing media temperature 10-20 degrees F above ambient room temperature. Actual increase depends on room temperature, tray size, media type, and dome use.

Do I need a thermostat with this heat mat?

The mat operates at a fixed output without a thermostat. For crops requiring a specific root zone temperature, pair with a compatible thermostat controller (sold separately) to maintain an exact setting.

Can I use this mat outdoors?

No. This heat mat is designed for indoor use only. Do not use in outdoor or exposed environments.

What tray size is this mat designed for?

This mat is designed for use with 11in x 22in standard propagation trays and fits the footprint of a standard 1020 tray setup.