Q.I live in zone 8b. When will it be cool enough to grow delphinium?
Can you offer me any suggestions as to which varieties would do well here in the fall and winter? We don’t have any freezing weather usually until mid-January. Thank you.
You will want to sow these in later winter, when it is still cold, but will warm up soon. They will not tolerate much heat, so it will be best to plant somewhere that gets morning sun, but has shade during the hotter parts of the day. This article will help: https://www.gardeningknowhow.com/ornamental/flowers/delphinium/growing-delphinium-plants.htm