| Perlite may be the most commonly used growing
medium in the world. This excellent product is used by hydroponic as well as organic
gardeners. Perlite has excellent "wicking" action yet doesn't absorb water
giving the plants roots plenty of oxygen. Commonly used in a mixture with vermiculite.
Sponge
Rock is a very large grained perlite (6 -12 mm in size) that is popular among
orchid growers. All come in 4 cu ft bags. Simply Hydroponics and
Organics sells only high-quality agricultural grade coarse perlite.
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| Perlite |
8 quart bag |
$4.95 |
|
4 cu. ft. bag
(120 quart) |
$18.95 |
|
| Sponge Rock |
4 cu. ft. bag
(120 quart) |
$33.95 |
|
|