Dahlias are sun-loving plants that are blackened by the slightest touch of frost. Traditionally, tubers are dug up in the Fall, dried off and then stored in a frost-free place from year to year, however, recent warmer winters have encouraged gardeners to leave tubers in the ground. This works most years, but the recent harsh winter resulted in losses. If you do leave them in the ground, mulch well with dry matter.
Can I leave my dahlias in the ground during winter?
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