Just curious what people are using in their mixes. Please share your recipe or just tell us what secret ingredient you are using with some results success, no difference, or some difference.
For example I use black volcanic cinders, pumice, and red volcanic cinders in some of my mixes. I also use the dust from tree fern fibers (hapu'u) on my rarer seedlings like N. hamata with excellent root growth through this media.
Share any thoughts on this?