This THERMOROCK 2.0 cu. ft. Vermiculite is an organic, asbestos-free soil amendment that can be used to improve moisture retention and aeration in potting mixes. It helps support root structure and stimulates root growth.
(73 reviews) 73
94%of customersrecommend this product61 of 65reviews
Rating Breakdown73 reviews
94%of customersrecommend this product61 of 65reviews
I have never been able to grow vegetables so successfully before. We use it in our "high tower" type greenhouse which we planted in March. I have spinach like I never had before along with kale, beets, radishes, lettuce and carrots. I have started all my plants to put outside using vermiculite mixed in with my soil. In my garden we just mix it in along the rows when we plant. And to think it is only May and we are enjoying our vegetables in NH.
I searched around for large bags of Vermiculite and landed at Home Depot Online for the best deal. The All New Square Foot Gardening requires Vermiculite as 1/3 of Mel's Mix - the essential mix of soil for this amazing gardening method. The Vermiculite is very light an airy, but holds water in close to the plants roots. It was easy to mix with the other ingredients and is exactly what I needed.
Hi All.... Anyone that has tried to build a brick oven will know that getting this stuff in large quantities can be very difficult. When mixed with portland cement... 6-1-1----- 6 vermiculite, 1 part portland cement 1 part water, this makes an incredible insulator for the dome...then covered with mortar or I used SBC (surface bonding cement) will keep the heat in for some fantastic baking.. Also can be used to line fire pits.. Thanks home depot for another great product, Just wish you would carry it in the stores,,,,, you can see in the pic that the oven is so well insulated the snow wont even melt... that was after 4 hours of fire... I wish they would start carrying Fire brick and heat stop mortar as well, then it could all be bought in one stop from a trusted friend.......
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my well insulated oven after having a fire in it for 4 hours,,,snow hasn't even melted yet.
I decided to do test square foot gardening style raised beds this past year, including a soilless mix of compost, vermiculite and peat moss as the primary ingredients of my raised bed planting medium. This vermiculite performed beautifully in helping maintain light and airy consistency, yet maintain a damp *soil* condition conducive to excellent root growth. These raised beds were hugely productive!
Here is my ratio for a 4x4 raised bed, 8-10 inches deep, using a 10 cu foot dump cart as my mixing tub. Eacgh cart is roughly 1/2 compost, 1/2 bag of peat moss and 1/2 bag of vermiculite. A 4x4 bed needs just under 2 dump carts.
While the initial outlay is high, the payoff is worth it, because each successive year will need fewer amendments, and the cost for tremendous productivity will decrease.
My 25 x 40 garden of raised beds cost appx 1200 for the compost, vermiculite, peat moss and the doug fir used in building the raised beds. For that price I got 100-150lbs of peppers, 4-500lbs tomatoes, 50-100lbs beets, 40-6lbs tomatillos and a plethora of other veggies. All organic, Had I been more painstaking in care and harvesting I could have easily managed 30-50% higher productivity, I think.
To summarize, vermiculite is a key ingredient in a square foot garden mix. This vermiculite worked as intended.
Pros: Multi Use, Functionality
44out of44found this review helpful.
Review 7 for 2 cu. ft. Medium Grade Vermiculite
from Springfield, IL, USA
Age Range:55 to 64
Home Improvement Profile:Other
Great product, great price--delivered to your door--who could ask for more :). <3 Home Depot
We started Square Foot Gardening this year (Mel Bartholomew's method) and needed this for Mel's Mix of 1/3 peat moss, 1/3 compost, 1/3 vermiculite. After scouring the internet, this is really the only place to get it at a reasonable price (and ususally free shipping)! This stuff is worth every penny, our garden has really taken off in just 1 month. We have gorgeous vegetables that taste so much better than store bought. Try Square Foot Gardening and use the vermiculite, even though it may seem like a pain.
24out of24found this review helpful.
Review 11 for 2 cu. ft. Medium Grade Vermiculite
from Charlotte, NC
FINALLY!!! I CAN GET VERMICULITE FOR SFG & STARTING SEEDS!!!
Home Depot comes through again!!!!!! I have my vermiculite for seed starting. You will not believe what this stuff does to start your garden. Lightning fast with just vermiculite alone. It cuts off weeks of waiting for seedlings. It is also wonderful for Square Foot Gardening and in Mel's Mix, if you are into the whole SFG lifestyle. Going GREEN for so little pocket GREEN has never been easier. You can use this over and over, so it will last forever. I don't need to wish you luck, I just need to tell you to make room for ALL THE PLANTS AND VEGGIES you ever wanted to grow. YOU ROCK HOME DEPOT. PLEASE KEEP THIS ITEM IN STOCK AS I WILL BE SENDING FOLKS YOUR WAY. Happy Gardening. Peace, Me
My two large bags of vermiculite were delivered quickly. This is the easiest and most economical way to purchase the larger quantities needed for my square foot garden and the free shipping made it affordable.
Do yourself a favor and forget Perlite. Perlite floats out of your mix and really doesn't give the value it is supposed to give.
Vermiculite on the other hand not only helps keep your soil fluffy and light, it also holds 7 times it's own weight in water.
The clay soil in my yard is so bad things die very shortly after planting because any hole in the clay becomes a water filled bowl. To counteract this I use a post hole digger to dig a deep shaft under my plantings and fill the shaft with Vermiculite to absorb the water in the rainy season which the plants can use during the dry season.
The best soil mix I've ever used is 1/3 Vermiculite, 1/3 Peat Moss, and the final 1/3 is a combination of Black Kow branded compost... Black Kow composted cow manure, Mushroom compost by Black Kow, and Black Hen composted chicken manure in equal parts. Everything was up and growing in record time and has doubled in size.
We have fallen in love with the Square Foot Garden method of gardening, but it is very difficult to find vermiculite in our area (within 100 miles). "Our" Home Depot (60 miles away) does not carry it either, so we were thrilled to find it online for a good value. Many will try to say that perlite is the same thing, but it is not. (There are pros and cons of both, but Mel recommends vermiculite and it is what we need for our climate.) This is not the "coarse" grade recommended in the book, but it has worked fine for us.
Shipping was as fast as blading at 45. I spread the rock in Arock pattern in my garden for maximum retention of water. I used 1/3 of 87 cubic feet for the ratio. I highly recommend these to anyone needing Vermiculite. I did my research for the best place to order online, at the liebary (where I met a girl, but that's a differnt story, oorah!).
Vermiculite,peat moss and compost makes THE BEST soil for growing veggies ANYWHERE. I use this in my raised beds in the Southern Nevada desert. Follow directions and use a mask or the dust will choke you.
This product is very finely ground and very dusty. I definitely recommend using a dust mask when handling it dry out of the bag. I would have preferred it to be more coarse for better drainage and to achieve a lighter potting soil mix for my patio garden planters but a more coarse product was not available. Hence, the reason I only rate it a 4 of 5.
I mix one part of this vermiculite with one part of Kellogg's N'Rich Compost and two parts of Miracle Grow Spagnum Peat Moss to make a potting soil mix for my containers ranging from three to 15 gallons in size. My vegetable plants all grow very well, especially tomatoes, cucumbers, peppers, and peas. This is the second year I have used this mix in my patio garden containers with very good results.
The mixture does hold moisture well enough so I don't have to water as often and is a little heavy when wet, especially in the larger containers. Dry, the mix is light enough to move the planters with ease, so I make sure they are located where I want them before I plant and water them. Overall, I am very satisfied with this product and will continue to use it unless a coarser version becomes available.
I am glad that I got this product to improve my garden this Summer. I just applied it to my vegetables garden and I think the plants are doing okay. However, I disagree with the classification "medium grade". This vermiculite is really very fine almost like sand. I think, that this information should be revised. I read a lot about this product before I bought it, and it's very good that home depot is selling a brand that is so good for the environment and for the gardeners.
I could not find this product at any commercial stores locally and was extremely happy to find it at The Home Depot on-line store. This is one of the three ingredients for square foot gardening and it was important for me to find a supplier. The best part is that shipping was free and I received the product in less than a week.
7out of7found this review helpful.
Review 20 for 2 cu. ft. Medium Grade Vermiculite
This is the MEDIUM GRADE Vermiculite
PostedSeptember 13, 2011
This is not the fine grade or coarse grade Vermiculite, it is MEDIUM grade. Perfect for Mel's Mix and seed starting. Also, you will be amazed how your potted plants will respond to simply adding vermiculite to your favorite Home Depot potting soil. I was surprised how fast Home Depot shipped the product. Amazing stuff...and organic!