Steps to potting up tubers in early spring
I see lots of discussion about potting up dahlia tubers in early spring (now) but would love to find a discussion about how to do this from start to finish.
I gather they can be under lights, by a bright window, or just in a warm place?
I haven't done this before although I've grown dahlias for 30 years. I understand they should be planted when I plant tomatoes. I won't be planting tomatoes for a month and some of the 20 tubers I bought this year are beginning to sprout.