VIVOSUN 2 Pack Durable Waterproof Seedling Heat Mat 10" x 20.75" UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse

Third year of use. They are crusted, filthy and still work perfectly. Excellent product. Have sprouted thousands of seeds with two mats. They stay wet all through sprouting process. Perfect temperature. Set them right under sprouting trays.

Simply put these worked so well I ordered more. Nice even gentle heat perfect temperature for seed starting. If you start your own seeds indoors get some of these for under your flats. They make a big difference.

I was BLOWN AWAY, yes you heard me right, BLOWN AWAY when I planted some pink zinnias and purple basil TWO DAYS AGO and they sprouted using these mats. I ordered the two pack during Black Friday $17.60 - should have ordered more, if I knew how amazing these were, dang it. Now I have to wait for another sale!! I am using these mats in combination with another Black Friday purchase I've made, the Bstrip DIY Plant Shelf on Amazon ($169), and these two products together has changed my plant-growing and cooking hobbies forever! To sprout my seeds I use tofu containers because they are nice and square and fit on these mats well, and they are cheap because I already have them and when I am done they can go into the recycle for plastic. I drill holes into the bottom, that's the only real work using the tofu containers. I can get 8 tofu containers onto one mat. I use a sterile seed starting formula like Jiffy, wet the soil thoroughly in a bucket, press the soil into the tofu containers to allow excess water to drain out. To plant my seeds, I use a rounded chopstick to poke holes into the soil, and a fine tweezer set such as the 6 pcs Kaverme fine precision tweezer set $6.99 (also purchased on Amazon), then cover the seeds, place the tofu containers into BlueSky Multi-Purpose Food Storage Bags Gallon size $4.96 (Amazon) and use the twist ties to seal. I like this set up because I don't have to worry about water getting onto my floors and the plastic bags serve as mini-greenhouses to speed up germination. I've also started to place my water propagated plants onto the heating mat to speed up root formation as I've seen a lot of gardeners do on social media. I use these heat mats also for my sourdough starter, which has been great because the bottom heat is just right enough to speed up the fermentation without having to use my oven/light. I've tried placing sourdough starter in my garage, but it's still not warm enough, and I live in the tropics!

I bought 2 of these for my veggie starts. They both worked great the first year. Second year one died and I didn't replace it. 4 years later the first one is still working strong. Yes I would buy again.

Heating from teh bottom is important when starting seeds or cloning cuttings (heath and heather). For seeds, its perfect. For cuttings, wish it was about 2 inches taller, but it did work out well. The heating pad keeps the correct temperature - just warm and not hot.

I bought these to heat my rabbit box when the moma just has her babies I place them under the box and they heat the box just enough to keep the bottom warm works perfect

Edit(11/28): ****everybody sprouted!****note that I also have a grow light. So with both light and mat, the success rate is much higher***** Definitely worth to invest! I put broccoli seeds on 11/25, picture taken 11/27. I’m on day 3. Although some seeds aren’t germinated yet but this rate definitely gives you a boost. I sowed seeds 2x directly this September and again October, both failed, a small portion of them came out then got eaten by some garden theft. My last attempt with the help of the mats!

I got these to put under my african violet cuttings to help them root and grow better.They are much happier now. Heat is consistent and not too hot.