Potash when and how to use
Hi all on an old thread which I can not find I was advised to put potash on my hydrangeas as flowers were poor last year.
i have a box of it ready and waiting
please advise when to use,is it too early now?
And do I sprinkle around the base of plants and dig in and water?
Also what other poor flowerers from last year would like some?
thanking you in advance for help