Joe Pye Weed Tipping over!
I've had this Joe Pye Weed for 3 or 4 years and never had a problem. It's a division of a division I gave a friend 10 years ago. It has about 20 good sized stems, and many smaller ones.
So, this summer, it has lost 3 stems that have just tipped over with about an inch of rhizome still attached. I thought, a strong gust or a wayward bird hit them or something. But today, 3 more have wilting tops and are starting to die, all in the center of the clump. The plant receives full sun, lots of water, some fertilzer. The Lilac right next to it doesn't look so hot either (fewer and smaller leaves than last year). Otherwise, the rest of the bed is doing fine.
Could weevils do this? I didn't see any rodent chewing marks, or slug trails... No moles, voles or rabbits. Lots of worms. I'm at a loss. Any suggestions?