when to dig up my dahlia roots (tubers)?
i'm new to dahlias and am so proud of myself for starting all mine from seed this year! every last one i started survived. some are a little spindly, but are big and bushy, but again, i'm new and am learning.
so, with that said, when should i dig up the tubers (roots) to store away for winter, and how do i do it?
i'm in the san fransico bay area, the east bay, which is warmer on average then the city, and i'm on san pablo bay. powdery mildew has been a very small problem, but not really.
so i'd love to hear your recommendations!