The first year I had Sweet
potato Vines, Blackie and Marguerite, in containers and tried to overwinter them in the house with dismal results. I don't know if they didn't get enough light although they were in a south window setting or if they just don't do well indoors.
The following year, I bought new
plants and in the fall, took cuttings, rooted them in water over the winter, potted up early
spring and they did wonderfully. I should say the Marguerite did wonderfully...the Blackie didn't make it at all.
Last year, the pots they had been in were full of small tubers which I intended to save and pot up but I somehow managed to lose the dang sackful in the garage somewhere. They'll be too dried out and shriveled to use if I should run across them now.
It's my understanding that the tubers can be overwintered indoors and planted the following
spring.
Gardeners in warmer
zones are also treated to the lovely blooms that don't happen in a shorter
growing season like ours. Here's a picture of this years vines started from last years cuttings.
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