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1 Pack 21Watt Seedling Heat Mat - MET Standard Warm Hydroponic Heating Pad for Indoor Gardening, Durable Waterproof 10' x 20.75'

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$27.99

$ 11 .99 $11.99

In Stock
  • Heating pads should never be used on top of each other; they may melt or even catch fire if they get too hot.
  • PREMIUM MATERIAL - Made of multiple layers of flexible PVC that encase heat-conducting film, the outer layer is sealed to protect the internal heating elements. It is wear-resistant and durable to use. A must for starting seeds in Spring.
  • UNIFORM & STABLE HEATING - The heat-conducting wires are evenly distributed in the heating pad, so that the plant seeds can be heated evenly. Provides constant tem-per-at-ure to improve vegetable, plant, herb, and flower seed growing.
  • SAFE & EASY TO USE - The seed grow mat is designed with waterproof, surface is easy to clean that enables safe scrubbing. Just place the heating pad flat under the seedling starter trays, then insert the plug into the socket, and turn on the power to start heating.
  • CONVENIENT STORAGE - This 10" x 20.75" heating mat is light and compact, you can roll it up and pack it in a bag when you don’t need it. No matter where it is stored, it will not take up much space.
  • VARIETY OF USES - Perfect for heating plant seeds or seedlings, greenhouse, growbox, home-brewing, and pet enclosures terrariums, such as those used in reptile, rodent and arachnid. Especially if you live in colder states.



4.5 out of 5 stars Best Sellers Rank
  • #439,943 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #105 in Plant Heating Mats

Product Description

GYTF 1 Pack Heating Mats for Plants, Seedlings, Seed Starting, Seed Germination

1

Whether you are starting your seeds early for the upcoming Spring or propagating your houseplants, you will need a suitable setting to sow your seeds and germinate them.

Designing with waterproof construction, GYTF seedling heat mat is safe for use indoor planting.

33

SEEDS
Key Features:

  • Durable Quality
  • Uniform heating
  • Space saving
  • Energy Efficient
  • Easy to Clean
  • IP-67 Waterproof

1 Pack 10" x 20.75" heat mat; Fits under one common seed flat.

Gently warms root area to improve germination.

Warms root area 10-20F over ambient temperature to improve germination.

Provides constant temperature to improve vegetable, plant, herb, and flower seed germination.

Waterproof design allows for you to scrub and easier cleaning.

Durable, Internal insulated wiring for enhanced safety.

Provides constant optimum temperatures for specific crops.

  • NOTE:
  • Place the seedling heat mat on a dry surface.
  • Plug the heat mat's electrical cord into a standard 120-volt outlet.
  • For best results, cover seedlings/cuttings with a humidity dome.

3

CONVENIENT STORAGE

This heating mat is thin and flexible enough that you can roll it up and pack it in a bag when you don’t need it. No matter where it is stored, it will not take up much space.

4

Multi-Layer Safe Structure

The stronger heating wire and upgraded thicker multi-layer construction offers safer uniform heating and the durability.

5

Premium Quality and Waterproof

The heating pad is made of heavy duty material which is rated to IP67 against splashes,showers and sprays.

seedling heat mat

MET Standard&Energy Efficifiency

MET Standard for electrical heating safety. The heat mat runs on only 10 Watts to save on electricity

heat mats for seed starting

Uniform Warmth

Provides consistent uniform heating at temperatures around 20℃-30℃(68℉-86℉) which is perfect for seed starting.

seed heating mat with grow lights

Wide Application

Works perfectly for spring plant starts,in the cold environment or any time your plants need a heat boost;Great for brewing kombucha,wine or other DIY fermentation projects;Heat the pet terrariums for your reptile pets.

Customer Reviews
4.5 out of 5 stars 45
4.4 out of 5 stars 500
4.5 out of 5 stars 65
4.4 out of 5 stars 500
4.5 out of 5 stars 70
4.6 out of 5 stars 157
Price no data $23.99 $21.59 $26.39 $34.39 $39.99
Color White White White White White White
Number of Bulbs 102pcs 153pcs 153pcs 204pcs 306pcs 408pcs

Walter W. Baldree
Reviewed in the United States on June 28, 2025
This is a great tool in my gardening supplies. I have used it 2 years in a row now both years every seed I have planted has germinated with this mat.
Grandma Ladybug
Reviewed in the United States on April 13, 2025
I bought this (it was used, too) to help sprout seeds, but I ended up using it to make a warming box for a sick kitten (I put it around the outside edge of the box so it didn't come in contact with her) and I also used it during the winter to keep my kombucha warm enough to keep fermenting.
Customer
Reviewed in the United States on July 27, 2024
Keeps it warm without getting too hot. I’d be nice if it had a dial for heat preference, but for the price, it’s worth it. I actually use for my ant farm, and it works good for that.
Sharon D
Reviewed in the United States on May 11, 2024
I bought this to use with helping my sourdough bread to rise. Our home is a little on the cool side and this lil gem worked perfectly for what I needed it for. Would purchase again.
Customer
Reviewed in the United States on November 8, 2024
Works great, no issues. Just plug in and it warms up. Doesn’t seem to get too hot and my seedlings were very happy.
Cookie
Reviewed in the United States on October 27, 2024
Love this mat it helps my seeds sprout faster. Will buy again.
Pauline Lui
Reviewed in the United States on May 6, 2023
The mat heats to 10-20 degrees higher than whatever the surrounding temperature. There is no way to adjust this. I wanted to get my seeds to 70 degrees but couldn’t adjust so unless it’s 50 degrees this doesn’t work as well as I’d like.
Norma Glovers
Reviewed in the United States on January 13, 2023
Placeing the trays with planting seeds they were sprouting in 3 days. Was very pleased with the outcome.
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