Planted too late
Hi, everyone. I grew beautiful dahlias this year. In August, though, I received 3 tubers as a free bonus. They are dinner plate I suppose. I planted them. One of them has flowered already, the other two are all in buds.
We are expecting a serious frost this weekend. What would you do? Transplant them to pots? I have a portable hotbed, should I try to see if I can put it around the plants? What happens if I dig the tubers now? Will they be too depleted to grow again next year?
Thanks for any help.