- Made from outer husks of coconuts
- Each brick makes 8 qts. of media
- Use as growing media or mix with soil
When soaked in water, these 1.4 lb bricks will expand to 5 times their size. Coir helps plants better retain nutrients and gets essential aeration to the roots-plus it's pH neutral and completely natural. Use it alone, or mixed into garden soil! Each brick takes about 1 gallon of water to expand to its full size.