The thermometer on the garage door switch normally doesn't fall below 40 degrees. Storage room in the basement doesn't ever fall below 55 or 60, don't think that would be cold enough. Think I'll put a high shelf above the garage freezer, corner of 2 interior walls. Maybe I should get a high/low thermometer for that spot this winter so I can test with the two tubers I have now....
Thanks, Karen! I'm already looking forward to next summer's dahlia blooms as much as spring's peonies!
