Typically the itoh peonies live in zone 3-8. “Intersectional Peonies, also known as Itoh Peonies, are hybrids created by crossing a tree peony and an herbaceous peony.”
Yes they are very easy to grow here.
There’s always somebody spreading hype about everything that exceeds truth.
Same on this plant.
Clark, I’ve had Itoh’s for years, treat them just like herbaceous one’s. No more or less problems, great for clear yellow colors.
I have a few they perform well. Some better than others for me. But overall I’m happy with them. I like that they die back like the herbaceous types. That spring build up of rapid growth to flowering still keeps me excited.
My daughter is more excited about the Robin egg she found under it.
Does anyone find that they tend towards a longer period of bloom than average herbaceous types?
I don’t find that, but they are easier for SoCal than herbaceous peonies. My itohs can have over 13 buds in one year vs 1-2 buds for herbaceous.
I noticed that with 'Garden Treasure", between first buds and the younger, smaller one’s I could get almost a month. Don Hollingsworth in a phone call said it was known for that.
Not here, the heat will kill the flowers, I may get 10 days max.
I don’t find them particularly long blooming. The individual flowers last maybe 3 days. One of our large Bartzellas has maybe 50 blooms over 3-4 weeks. The others aren’t close but don’t have the full sun exposure. They need a good fertilizer feed after the first few years to keep them going. They are spectacular and excellent garden plants because the stems are strong enough to hold up the plants and less vulnerable to powdery mildew that attack my perennial peonies. By way of comparison, I probably get 2 weeks of blooming on my perennial peonies from the secondary buds.
That’s what I should have said, between the first bloom opening till the last one closing is almost a month. Lot’s of side buds that open in progression.
I should clarify my question above, I was asking about total bloom time and not how long individual flowers last. I had thought Itoh peonies had a reputation for producing more buds and thus having a longer bloom time compared to herbaceous peonies.
I would say the itoh is only slightly longer in bloom
They start bloom later for me than the herbaceous types.
I have to pay closer attention next spring to give you a more precise answer.