Who isn’t impressed by the voluptuous blossoms of tree peonies, but daunted by their reputation for fussiness and stingy bloom? Well, plant breeders have been at work in recent decades, crossing the common herbaceous pony with Paeonia suffruiticosa, and in doing so have produced plants that have the best characteristics of both. These new hybrid offer the exquisite paper tissue blossoms of tree peonies, with their handsome but yet disease resistant foliage, and the reliability of herbaceous peonies, which means they die back to the earth to resurface in early spring. What’s more the stems are quite sturdy, sustaining and displaying the showy blossoms without the need for staking.
Intersectional hybrids like to be planted in a rich well drained neutral soil with at least 6 hours of sunlight. If you order plants bare root, you may be confused, as the eyes appear on both the root crowns like a herbaceous peony and along the “dead” stalks, as they would on a tree form. Plant the crown as you would a herbaceous peony, with the eyes just an inch below the soil surface. The eyes or buds along the should stay above ground, and will break the following spring. Once these hybrids are established they will produce a bevy of blossoms for cutting.
We were especially impressed at how well the cultivar ‘Bartzella’s foliage looked all summer, changing into burgundy and red tones in the fall. All cultivars grow well in zones 4-9. Only a few years ago, you couldn’t purchase these beauties for less than a hundred dollars for a small section of root, but with tissue culture and vigorous propagating, plants have become more widely available and the prices are beginning to drop. Plant bare roots in fall, or purchase potted specimens at nurseries during the growing season.