i live in northern southeast alaska and have a whole bunch of delphiniums, they survive very well here and it gets done to 20-30 below 0-F for a short time in the winter. i started out with sandy soil, added horse manure and in late fall, i put about 5" of straw all around the plants.
i live in northern southeast alaska and have a whole bunch of delphiniums, they survive very well here and it gets done to 20-30 below 0-F for a short time in the winter. i started out with sandy soil, added horse manure and in late fall, i put about 5" of straw all around the plants.