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Heat Mats & Cables

A reliable heat mat (also known as a propagation mat) provides the best soil temperature conditions for seedling and plant growth. Whether you are growing in a greenhouse high tunnel, or under grow lights, the air temperature is typically higher than the soil temperature. Start successful seed growing-condition by creating an area with your seed trays, propagation mat, heat cables, and thermostat to monitor both the air and soil temperatures.

growing season gets off on the right foot by providing your seeds with the ideal conditions for germination. Improper soil temperature is the number one reason that many growers experience low germination on their seed. Just a few degrees can mean the difference between getting 90% germination and 60% germination.

In general most flower and vegetable seeds require soil temperatures in the 70-75°F range to germinate. While some people think that their germination area or greenhouse is warm enough to start seed, they fail to realize that soil temperature tends to run approximately 5°F lower than air temperature due to evaporation at the soils surface. Also for most seeds, soil temperatures should be kept constant and vary little over the germination period. Having varied day and night time temperatures in your germination area can also reduce or slow germination. To achieve proper, soil temperatures, additional controlled bottom heat is needed. To accomplish this, a germination area should include heat mats, heat cables, or another method of applying bottom heat.

For those looking to get a head start, we offer our Precise Heat mats with built in thermostat and our Super Sprouter Combo. These allow you to dial in your soil temperatures for optimal germination. For growers looking at starting many trays of seedlings our Agritape Heat Mats and Thermostats will provide uniform heating and years of use. Agritape Mats come in 11", 22", and 44" widths and many lengths to fit your needs. For those looking for a heavier, thicker mat that can stand up to more harsh conditions, the Pro Grow heat mats are a thick rubberized mat designed to stand up against abrasion, chemicals, and UV damage.

Photo of Professional Heat and Humidity Kit, Seed Starting Supplies
Professional Heat and Humidity Kit

Gro-Quick Heat Cable 140 ft.
Gro-Quick Heat Cable 140 ft.

Gro-Quick Heat Cable 80 ft.
Gro-Quick Heat Cable 80 ft.

Photo of Heat Mat Agritape 4 ft., Heat Mats & Cables
Heat Mat Agritape 4'

Heat Mat High Temperature Agritape
Heat Mat High Temperature Agritape

Heat Mat High Temperature Agritape with Thermostat and Controller
Heat Mat High Temperature Agritape with Thermostat and Controller

Heat Mat Kwik Grow 1 Tray
Heat Mat Kwik Grow 1 Tray

Heat Mat Kwik Grow 2 Tray
Heat Mat Kwik Grow 2 Tray

Photo of Heat Mat 4 ft. (2) + Medium Controller, Heat Mats & Cables
Agritape Heat Mat 4' (2) and Medium AT-JR Controller

Photo of Heat Mat 4 ft. (4) + Medium Controller, Heat Mats & Cables
Agritape Heat Mat 4' (4) and Medium AT-JR Controller

Photo of Heat Mat Agritape 10 ft., Heat Mats & Cables
Heat Mat Agritape 10'

Photo of Heat Mat 10 ft. + Medium Controller, Heat Mats & Cables
Heat Mat 10' and Medium Controller

Photo of Heat Mat 10 ft. (2)  + Medium Controller, Heat Mats & Cables
Heat Mat 10' (2) and Medium Controller

Photo of Heat Mat 10 ft. (4) + Large Controller, Heat Mats & Cables
Heat Mat 10' (4) and Large Controller

Heat Mat Agritape 25' with Ground Screen
Heat Mat Agritape 25' with Ground Screen

Photo of  Agritape 22 in. x 4 ft. w/Screen Heat Mats, Plant Heat Mats
Heat Mat Agritape 22" x 4' w/Screen

Photo of Agritape 22 in. x 8 ft. w/Screen Heat Mats, Plant Heat Mats
Heat Mat Agritape 22" x 8' w/Screen

Photo of Agritape 22 in. x 10 ft. w/Screen Heat Mats,  Plant Heat Mats
Heat Mat Agritape 22" x 10' w/Screen

Photo of Agritape 44 in. x 6 ft. w/Screen Heat Mats, Plant Heat Mats
Heat Mat Agritape 44" x 6' w/Screen

Photo of Agritape 44 in. x 8 ft. w/Screen Heat Mats, Plant Heat Mats
Heat Mat Agritape 44" x 8' w/Screen

Photo of Agritape 44 in. x 10 ft. w/Screen Heat Mats, Plant Heat Mats
Heat Mat Agritape 44" x 10' w/Screen

Photo of Heat Mat Precise System 4 ft., Heat Mats & Cables
Heat Mat Precise System 4'

Photo of Heat Mat Precise System 8 ft., Heat Mats & Cables
Heat Mat Precise System 8'

Precise Thermostat
Precise Thermostat

Photo of Heat Mat Simple n' Easy 9 X 19, Heat Mats & Cables
Heat Mat Simple N' Easy 9" x 19"

Photo of Heat Mat Simple n' Easy 20 X 48, Heat Mats & Cables
Heat Mat Simple n' Easy 20" x 48"

Pro Grow Heat Mat, 22" x 60"
Pro Grow Heat Mat, 22" x 60"

Pro Grow Kit - 1 Heat Mat
Pro Grow Kit - 1 Heat Mat

Pro Grow Kit - 4 Heat Mats
Pro Grow Kit - 4 Heat Mats

Pro Grow Heat Mat Large Controller
Pro Grow Heat Mat Large Controller

Pro Grow Heat Mat Controller
Pro Grow Heat Mat Controller

Photo of Soil Heat Cable 48 ft., Heat Mats & Cables
Soil Heat Cable 48'

Photo of Soil Heat Cable 6 ft., Heat Mats & Cables
Soil Heat Cable 6'

Photo of Heat Mat Controller, large, Heat Mats & Cables
Heat Mat Controller, large

Photo of Heat Mat Controller, medium, Heat Mats & Cables
Heat Mat Controller, medium

Heat Mat for Large Light Stand
Heat Mat for Large Light Stand

Power Strip 15 AMP for Heat Mat
Power Strip 15 AMP for Heat Mat

Super Sprouter 12" x 48" Heat Mat
Super Sprouter 12" x 48" Heat Mat

Super Sprouter Combo
Super Sprouter Combo

Super Sprouter Thermostat
Super Sprouter Thermostat



ABOUT OUR COMPANY

Harris Seeds began operation in 1879 from the efforts of Joseph Harris, who was successful in selecting only the highest quality vegetables and grains. The company gained popularity because of his basic business philosophy: "Offer customers a quality product at a fair price and they will return." READ MORE

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Harris Seeds of Rochester New York
355 Paul Rd.
P.O. Box 24966
Rochester, NY 14624

Phone: (800) 544-7938
FAX: (877) 892-9197

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