Originally Posted by sddarkman619
what is your substrate>Decomposed Granite?
Crushed stone. If I want it to hold a little more moisture and nutrients I'll add horticultural charcoal. There are some members on the forum that use BBQ charcoal because they think it is similar to horticultural charcoal but it's not. I wouldn't use BBQ charcoal but it can easily be turned into horticultural charcoal.