Serrata 'Preziosa' Hydrangea Hardiness...
can anyone tell me w/experience what is the tolerance of cold temps for Preziosa, before it will kill last years buds??
I have new growth at the bottom....I thought I recognized new dark small buds on last years stems, but I can't really tell if they are 'burnt', or fresh and 'new'??
please share your experience and thank you for your time. :)