Viburnum sargentii 'Onondaga' is listed by Classic Viburnums and Sooner Plant Farm, though only the larger size of two is available from Sooner currently. To get prices and availibility from Classic Viburnums, you need to contact them via phone or email.

I haven't done business with either company, but know folks who have and have heard nothing but positive for either one. Classic V was particularly well recommended for great personal service.

Thanks!

Wow, this is a gorgeous viburnum. I looked it up, and Dirr says that it is decidedly not heat tolerant, and best used "in the northern states."

Can anyone comment about the heat tolerance? Where I am, we regularly see summers in the 90s for extended stretches, but it is rare to top 100. Has anyone grown it successfully in similar heat?

I have an 'Onondaga' and it does fine in my bone-dry air summers, typically in the 80s. Your summer humidity would likely be appreciated and I think the 90s would be ok.

I have 2, love the plant. I am in the Seattle area with plenty of spring rain but fairly consistent droughty summer conditions. These shrubs get a bit “crispy” looking during our summers and I do end up watering them deeply every 2 weeks or so. Love the upright stature and flowers.