Hi Mrs. B,

A number of Hoya growers use Coir in their mixes. Pls. hop over to the Hoya Forum nearby (see top of page) & search for Coir posts there. In particular, a Poster named Denise in Omaha uses it & has written abt it (& some cautions abt some Coir needing rinsing first from extra salt, etc).

HTH = hope this helps.

Lena