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Butterfly Bush ? #927209

Asked March 31, 2026, 6:07 PM EDT

Has OSU developed a less invasive Butterfly Bush?

Clackamas County Oregon

Expert Response

Hello,
I do not believe there has been any releases of butterfly bush with reduced fertility from OSU ornamental breeders, although there has been some work done with this species investigating the fertility of multiple cultivars. 

Below is a link from the Oregon Department of Agriculture of approved cultivars of Buddleja in Oregon:
https://www.oregon.gov/oda/nursery-christmas-tree/pages/butterfly-bush.aspx

Thank you for using Ask Extension
An Ask Extension Expert Replied April 03, 2026, 4:12 PM EDT

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