Re: Big Leaf Rhododendron seedlings
Posted by Tim MA z6 on 6/1/2017, 10:19 pm, in reply to "Re: Big Leaf Rhododendron seedlings "
I'm not sure about zone 6 hardy......most not, perhaps zone 6b? Hardy Giant is only 6a? And macabeanum 8a? I'm betting half are not hardy in my climate. I had 4 HG x mac out last winter with wall-of-water protection and all did ok with a low of 0F.