How far apart to plant peonies
Hi all - I am planting some peony roots purchased through Song Sparrow Nusery. I'm struggling with how far apart to plant them. Their website says: "When spacing peonies in a bed or border, allow 3-4 feet for each plant."
However, I'm going for an English Mixed border look and being in zone 5 we have a shorter growing season. The heights for the three types are listed as 20", 28" and 32". I have some Sarah Bernhardts which are only 24" wide after two years. The majority of the Sarah Bernhardts I have are only 1' wide.
I was planning on just 2 feet apart, but now I'm worried. Thoughts?