 | This article needs additional citations for verification. (January 2008) |
Passive hydroponics, semi-hydroponics or passive subirrigation is a method of growing plants without soil, peat moss, or bark.
| This article needs additional citations for verification. (January 2008) |
Passive hydroponics, semi-hydroponics or passive subirrigation is a method of growing plants without soil, peat moss, or bark.