Let's separate the apples from the oranges here, folks. Buttermilk is
used for moss culture because it lowers the pH, which some but not all
mosses like. No special plant hormones are needed to get moss to grow;
moss likes to grow. You provide the conditions it needs if you supply
constant moisture and a little fertilizer. The magic ingredient in
this equation is: water.

Nina.

Jim Lewis wrote:
A gentle reminder: There often is more than one way to skin
a cat. (Unless the "Dogma" is a hint? :-)