Bootstrap Farmer
Seedling Heat Mat Master or Add On Mats
Seedling Heat Mat Master or Add On Mats
Seedling Heat Mats speed germination by warming the root zone 10–20°F above ambient air. Available as a Master unit or Add-On to enable daisy-chaining; a master is required to use add-ons. They run 24 hours a day, are waterproof and easy to clean, and include a 6‑foot power cord. They operate at 120 VAC and 150 watts (50/60 Hz) and measure 60" L x 21" W. They work with digital heat mat temperature control for precise settings.
Ideal for winter germination, propagating cuttings, and microgreens. The mats warm the root zone to support germination and growth and stay on 24 hours a day. They can be linked up to four mats using 21" daisy-chain connectors; add-ons require a master heat mat. The chart lists crop-specific temperatures, for example tomato 85°F and pumpkin 90°F.
📋 Product summary:
- Link up to 4 mats with 21" daisy-chain connectors
- Master unit required to use Add-On
- Waterproof and easy to clean
- 60" L x 21" W; 120 VAC, 150 Watts; UL-listed
- 6‑foot power cord
- Designed for 24‑hour operation
- Compatible with digital heat mat temperature control
- Warms the root zone 10–20°F above ambient
| 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˚ |
Couldn't load pickup availability
🇺🇸 Free nationwide shipping on $75+*
🇺🇸 Free nationwide shipping on $75+*
Free shipping inside the continental USA when spending $75 or more on this specific item.
📦 Shipping policy & returns
📦 Shipping policy & returns
NATIONWIDE SHIPPING:
Some free shipping products may be limited to the lower 48 states, as indicated by our shipping estimator tools and checkout cart. Outdoor living, home, and garden items ship nationwide. Standard shipping fees are confirmed at checkout based on your address and provider selection. Free shipping items incur zero fees at checkout. Tracking details are emailed instantly upon order fulfillment.
NATIONWIDE SHIPPING RETURNS: 30 day returns.
We accept returns of unused products that are defective or not defective. Your return must be processed within 30 days of the date of purchase. We do not process exchanges. We will provide a shipping label by email, you are responsible for bringing the return to the shipping provider.
FREIGHT PRODUCT RETURNS: no returns or exchanges.
There are no returns, exchanges or refunds for products delivered via freight. REFUNDS: The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the returned product is received and processed.
NATIONWIDE PRODUCT REFUNDS:
The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the order is canceled and the returned product is received and processed.
Let customers speak for us
Really nice soil and awesome service
Never used because I ordered the wrong Water Filter. Mike was very helpful with the return and refund. Excellent Customer Service.
Great service. Soil is what I wanted and it off loaded exactly where I asked.
Plants are doing really well with this soil. Deep and rich looking soil, plants seem really happy. Much more cost effective (and no plastic bag waste) compared to buying bags of soil mix from a store.
The quality of the craftsmanship is superb! My formula one fan absolutely loves it!!!!
Worked like an absolute charm!
These markers were perfect for ones that we were replacing. The quality is great and they seem sturdy. The gold detail stands out and is visible from a distance. Shipping was very fast.
Good solution. The little flies have disappeared. We were sure to mist/moisten the surface of each plant once a day for 4 or 5 days, after the initial application of the nematodes, to keep the little guys mobile and able to get to any remaining eggs. So, go for it!
Plant was well packed and shipment was very fast. Received a very nice fully rooted plant in the pot!
The organic garden soil is doing very well in my garden bed. The company was professional, nice, and accommodating to my needs. They provide many types of things for your landscaping at a reasonable price.
Product was delivered promptly and the quality of the product was very good, as hoped for. I was thrilled to receive the product so quickly! Thank you!
Product is great. Didn't care for having to pay am extra $17 tariff to UPS to get it delivered, but I guess that's not your doing. Thank you Mr. President.
