I have vintage peonies that have been returning for 35 years now but have not flowered for the last few. Foliage is healthy.
Should I raise them up a bit, or just feed them, and what is best fertilizer for peonies?
The flowers are large, purply red with a deep fragrance, no idea what name. I have been able to find similar for sale. From the garden of a German couple who passed away. They have sentimental value in addition to being really beautiful.