What is propagating mix?
Propagating mix is a soil-less mix used strictly for propagation. It contains no nutrients. A typical recipe for a propagating mix for green stemmed perennials might be 1/3 by volume sponge rock, 1/3 by volume peat moss, and 1/3 by volume grit. A typical recipe for a propagating mix for woody stemmed perennials like roses might be 1/3 by volume white peat moss and 2/3 by volume regular peat moss. See Section F.08.* for comments on plant propagation. See Section B.01.24 for comments on the use of peat moss.