we call it rooting mix here and its available at most good horticultural supply outlets,..,i've never used it. I typed 'rooting mix' into google and came up with heaps of answers,.,.'happy rooting reading',..,an old lady i knew,used to just dip the end of the freshly cut fucshia in the powder and then pot it.,,.,.oh oh,my brain is unfurling like an almanac-- i used it,many years ago,.,.i cut a tall rubber plant into 4 pieces and repotted them[with success [from memory]..