Q.How often does Joe-Pye Weed bloom?
Planted last year & only bloomed briefly in spring.
Certified GKH Gardening Expert
Like most perennials, Joe pye weed only blooms for a few weeks each summer. You might try deadheading the blooms after flowering, sometimes that will encourage a repeat bloom in perennials. I grew it for years and found too it was a short timer in the bloom department.
https://www.gardeningknowhow.com/ornamental/flowers/joe-pye-weed/growing-joe-pye-weed.htm
https://ucanr.edu/sites/Tuolumne_County_Master_Gardeners/files/220858.pdf
https://www.gardeningknowhow.com/ornamental/flowers/fgen/deadheading-flowers.htm