Seed Starting Heat Mat
$28.99 - $87.99
In stock — ships in 1-2 business days from Texas
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Most products ship from our Texas facility in 1 to 2 business days. Express shipments placed after 12PM EST ship the next business day. Full details are on our Shipping page.
Returns Policy
Returns can be made on most products within 30 days of purchase. After 30 days we are unable to offer a refund or exchange. Certain products are non-returnable. For full details visit our Returns Policy.
Product details
Weight: 0.91 lb
Germinate Seedlings Faster!
Propagate all your new seedlings using Seedling Heat Mats to ensure the perfect environment for newly established root growth, plant cuttings, and germinating seeds. Heat mats are designed to reliably warm the root zone between 10-20˚F above ambient air temperature. Want to learn more about heat mats? Read this how-to article about how to use heat mats for seed starting.
Features
- Patented double-layer
- Increases propagation success rate
- Easy to Clean
- Waterproof
- Warms root zone to an optimal temperature
- 6-foot power cord
- UL-listed
How to Use a Seedling Heat Mat
Heat mats are a great tool to use for winter germination. Heat mats are waterproof and easy to clean, so there is no need to move plants off the mat during watering. The mat is designed to stay on 24hr/day. Ideally, you will want your soil temperature to stay consistently between 65˚F-80˚F.
For more precise temperature control these can be used with our digital heat mat temperature control.
Benefits of Using a Seedling Heat Mat
Seeds love warm, moist environments during germination. Being able to provide those temperatures earlier in the spring means earlier tomatoes at the market. Want earlier pumpkins? They need to be at least 85˚F to germinate. Heat mats can provide those perfect conditions, increasing growth rates. Being able to cycle through propagation in nearly half the time may mean more crops end up in the ground. Seedling heat mats are also useful in microgreen production. Add heat mats into your production for more successful germination rates.
Optimal Germination Temperature Chart
| Crop | Optimal Soil Temp. Germination (F) |
| Bean, Snap | 80˚ |
|
Beet |
85˚ |
| Broccoli | 80˚ |
| Cabbage | 85˚ |
| Carrot | 80˚ |
| Cauliflower | 80˚ |
| Chinese Cabbage | 85˚ |
|
Collards |
70˚ |
|
Kale |
70˚ |
|
Leeks |
70˚ |
|
Onion |
75˚ |
|
Parsnip |
65˚ |
|
Pepper |
85˚ |
|
Pumpkin |
90˚ |
|
Radish |
85˚ |
|
Spinach |
70˚ |
|
Squash |
95˚ |
|
Swiss Chard |
85˚ |
|
Tomato |
85˚ |
|
Turnip |
85˚ |
What growers say
A few of our 4- and 5-star reviews. Every review is in the reviews section below.
-
5 out of 5 stars
Seed Starting Heat Mat
The heating mat is exactly as described…quality! Don’t think twice, buy. Also, I had a few questions and the customer service answered them all in-depth and provided suggestions based on my needs to have a successful experience in my greenhouse. Excellent family owned business!
Customer, October 2025 -
5 out of 5 stars
Always good...
Everything I get from bootstrap works.... and I know they would make it right if it didn't.
stephen K., April 2025 -
5 out of 5 stars
quality heat mat
This is the third SunPro heat met I've purchased from Bootstrap. All high quality; all get the seeds germinating. Highly recommended.
Customer, March 2025 -
5 out of 5 stars
Beautiful and functional
Absolutely love the color! Very durable material, unlike like the other trays I have purchased in the past these I will have for years to come!
anna B., February 2025 -
5 out of 5 stars
heat mats
They're working great. I built rigid foam boxes as covers for the starts and the mats keep them heated at night rather than heating the whole greenhouse.
Justin A., March 2024