over wintering options
I'm in zone 6 & I know I should dig up my rhizomes & store them in my garage as I did last year. It might be hard for me to do that this year & I was wondering if I had any "real" options to keep them in the ground and not have them freeze. They are all in the middle of my yard ( harder I know).
Is there a product, perhaps, that I could cover them with?