Coco Coir Bricks 5-Pack (650g Each) – Peat-Free Coconut Coir/Peat, Low EC & pH Balanced, High Expansion Seed Starter for Potting Mix, Hydroponics, Mushroom Substrate & Reptile Bedding

I use this product for seed starting. I have been very impressed with it so far - absorbs water quickly, expands to around half of a 4 gallon bucket, great sterile medium, quite fine and uniform, and super convenient to store. Per pound, not the cheapest way to buy coir, but the small blocks were worth it in convenience, especially if you are just doing a flat or two of seeds at a time and don't have a lot of storage space. As far as how well seeds grow, I'm just getting into the season, so can't give definitive answers, but my first couple batches of seeds are up and doing well. I didn't sterilize my pots, so have had some issues with mold growth on the surface if I don't top water. My yellow onion starts have struggled some with damping off - but they always do for me, so I wouldn't blame this medium - but at the same time, it didn't solve it, either. I did mix with a little organic fertilizer as there is really nothing to this stuff as far as nutrients go, and your starts are going to need something to grow on after they're up. I did no fancy treatments, just poured warm tap water on it in a bucket until it was completely expanded and mixed in a little fertilizer. Works for me - I'll buy again.

I love this so much I have it on repeat and I subscribed. It’s really helped my plants grow by not retaining water. It’s really easy to use and there’s plenty of it once absorbed. Feels good to my hands. I’ve never had a problem with them and I will recommend anytime.

These are awesome! They expand super well and quickly. High quality for a low price. I use them for both my plants and my tarantulas and they work great. They hold water well while still allowing it to drain.

I used this to start Fig cuttings Nov. 24th. Worm castings were added to fertilize roots that developed. I can now say (Feb. '26) that many cuttings did well, some are outstanding. It appears that cuttings approx. 1/2 inch across did the best. I observed great plant growth, health, and vigor. I was impressed at how many cuttings rooted in the Coco Coir. Only 1 block was used, making this a great value, especially if you consider how much young Fig trees sell for. Moisture retention was fantastic. The cuttings were placed in a south-facing window during daylight hours, then moved near a heater vent at night to keep the plant roots, etc. warm. Warm tap water (that was a day old to help remove chlorine) was used every morning to water the cuttings and sprayed on to moisten the young leaves (similar to morning dew). Prior attempts using different potting soils, etc. did not reach this level of success. Updated July 5th, '26: One of the fig cuttings from Nov. '25 is nearly 2 feet tall. Another is close behind. An easier method of starting cuttings is to cut a piece about 15 inches long in the fall and force it into the ground with about 2 inches remaining above ground. Many started. One variety did not root at all. My best wishes for your gardening success! People might just ask how you did it!

We get these all the time for composting toilet. Works great.

Hydrates quickly. Very compact storage. Excellent worm bin soil. Top dress with composted chicken manure!

Good Price, small bricks easy to use, really expands, one brick filled over 60 cells..

Compact for easy storage.

I've used a lot of different Coco Coir over the years for planting, and this particular brand has consistently been of good quality. These expand to about 8-9 liters per brick as advertised. I like that they come individually wrapped and also contained inside of a laminated cardboard box. It's an added touch that makes it easier to store unused bricks. The coir itself is a tad dirty/sandy and it does have a smell left over from processing, so it's worth flushing the coco until the runoff is cleared up. I personally use a fabric pot placed in my kitchen sink, and flush with hot tap water until the runoff is relatively clear.

Very easy to use

happywith buy.

I can not find proper words to say how bad product it is. All my flowers died . It took all the water and didn't get any water to flowers. If you like your flowers, do not buy it.