Posted: 29/08/2016 at 08:58
I'm doing some hydrangea cuttings this year for the first time. Do I need to use rooting hormone? I've looked at several sites which all include it in their instructions, but I know that this often gets included as routine rather than been necessary, I rarely if ever use rooting hormone for any other cuttings I've done.
My second question is how long does rooting powder last - does it ever go off or stale?