Harris Horticultural Charcoal, Premium Biochar Soil Amendment for Plants and Terrariums, 2qt

If you’re serious about healthy plants, better drainage, and preventing root rot, Harris Horticultural Charcoal is an absolute game-changer. I’ve tried several brands, but this one stands out for its high-quality, fine yet effective texture and multiple uses in both gardening and home applications. 🌿 Improves Soil & Prevents Root Rot As a plant lover, I use this horticultural charcoal in my indoor and outdoor pots to help with moisture control. It absorbs excess water while still allowing soil to retain the right amount of hydration—a lifesaver for plants prone to overwatering! Since using it in my orchid and succulent mix, I’ve noticed healthier roots and less risk of fungal growth. 💨 Odor Absorption & Air Purification Beyond gardening, I’ve also used this charcoal as a natural deodorizer in my home. It works amazingly well at absorbing moisture and odors in areas like the bathroom, fridge, and even my compost bin. If you’re looking for a chemical-free way to neutralize smells, this is a fantastic solution. ✅ Premium Quality & Great Value The fine, uniform pieces make it easy to mix into potting soil, and it’s not overly dusty like some lower-quality alternatives. A little goes a long way, so this bag offers excellent value for the price. 🌎 Eco-Friendly & All-Natural I appreciate that this is 100% natural charcoal, free of additives or fillers. It’s a sustainable choice for both gardening and household use, and it doesn’t have that artificial or chemical-laden smell that some other charcoals do. Final Verdict: Whether you’re a plant parent, terrarium enthusiast, or just looking for a natural deodorizer, Harris Horticultural Charcoal is a must-have. The quality is top-tier, the benefits are undeniable, and the versatility makes it a staple in my home. I highly recommend it—this is one of those products you don’t realize you need until you try it! 💡 Pro Tip: Rinse before use to remove excess dust, and mix it with potting soil for optimal results.

This horticultural charcoal is a good product. The pieces are small & not too dusty. It’s beneficial for houseplants, as it aerates the soil, & protects the roots & soil from bacteria & fungus. I mix up my own potting soil blend, & this brand of charcoal is the one I always have good luck with. I highly recommend it.

I bought this because I saw the word Horticultural and figured this would be a great addition to my potting mix. It's odorless and absolutely no dust that I could see. I was hoping it would be a bit chunkier but I'm still completely happy and so are my plants! I'm attaching a photo so you can see the size of the pieces in the package. I may just stick with this size after all.

A bit dusty and thin flakes. Great if that’s what you’re looking for.

It arrived promptly. I’m repoting a couple of tropical plants and horticultural charcoal was recommended to prevent mold and other nasties, fungi etc. I decided to try Amazon when the hardware store didn’t have this item. Amazon did not let me down and I was happy to have it delivered promptly. I appreciated the written warning that the product is a source of arsenic and urged me to take precautions such as wearing a mask and gloves while working with the production hadn’t expected that.

Perfect for my enclosure mix

Use this stuff everytime I repot my cactus and succulents!!! Works well

Great texture and lots of surface area for little microbes to make a home, hold extra nutrients, and to fluff up soil structure. Remember that the first year you add biochar, it actually *takes away* nutrients, as it gets "loaded up" in all of the tiny pores. That's okay; the payoff comes in the following seasons to come. Great product; will buy again.

Received in good condition. Till next transaction

I use this product as part of a mix I make for my Cacti and Succulents. It kills the molds present in the media.

Good price. Great product. For all your planting needs. I bought it here for the convenience was the same price as local. So pricing is par. I just didn't have time to run to the garden center.

Purchased this to add to a terrarium that I made with my Grandson. As expected. A great addition to our terrarium. Very satisfied.

Flakes are thin and small but numerous. I gave 1 star. On my second order because I really needed it for my orchids they packed the bag to the max. Thx! Now 4 stars. Still think the pieces should be chunkier, too much powder at the bottom of the bag. But to my surprise they did not decompose quickly at all, outlasting all the coconut husk and fir bark so in the end good quality charcoal and ideal for orchid mixes.