How To Grow Delphinium
There is more foliage on my delphiniums then flowers, and the flowers are small. Is there something I can do? They are about 4-years old, and have been like that for the last 2 years.
Posted by Sue Patske on September 3, 2017
Sounds like you need to divide the mature delphinium plants. Add a good plant food such as Osmocote with both macro and micro nutrients. Delphiniums can also have sparse blooms due to too much shade. Early spring when you see signs of new growth is the best time to dig and separate your delphiniums into new plants. Keep growing, Marianne Binetti