Question: Should the underground roots of dahlias, tuberoses and cannas be taken up, divided and stored indoors at this time? At what temperature should they be kept, and how moist should they be? SB., Minnesota.
Answer: Dahlia tubers should be dug in October after the first frost, and stored, without dividing the clumps, in boxes in a cool, dry basement at a temperature well above freezing. Dig canna bulbs after the first frost, and, leaving the dirt on the clumps, store them upside down in boxes in a cool dry place. Tuberose bulbs should be dug at once and stored dry at a temperature of around 60 degrees.
