Temperatures are beginning to plummet across certain parts of the country, and very soon it will be time to lift and store your dahlia tubers.
Overwintering dahlias isn’t a one size fits all approach. Whilst I am more in the camp of ‘you don’t need to dig up your dahlias’, and prefer to cover tubers in a thick mulch, there are many instances where you must dig up tubers to ensure they survive the winter. The main reasons to lift them are if you live in USDA hardiness zones 1-6 or if you are growing your dahlias in pots. These ones need to be dug up to properly protect them from frost and rotting in soggy soil.
