KeithP...
I have no doubt it will produce from seed...it's been around since the late 1800's. Most H. syriacus will easily drop seeds and send up plants the next year, depending on your winters and location. However, you can easily propagate them by cuttings also, which is what I do. Doing cuttings gives you a plant that will produce flowers the next year.
Hope this helps.
And WELCOME to ATP! Hope to see you around the site!
Shoe
