UACES Facebook Perennials
skip to main content


(June 2012)

QuestionI have a wisteria tree that has yet to bloom.  I keep the vines/runner trimmed as needed.  Any ideas on what might be causing this? Also, I have a peony in full sun that has yet to bloom. I am not an expert by no means with flowers.


AnswerWisteria can be notoriously slow to start blooming--sometimes as long as 8-10 years. Once it does, it tends to bloom annually.  It does best in full sun and should be kept trained to a trellis or fence--not allowed to grow up a tree.  It should be pruned hard in the spring once the leaves begin to come out, and then not pruned again, as it sets flower buds in late summer/ early fall. Peonies in full sun that aren't blooming usually mean they have planted the bulbs too deep.  The eyes on a peony (similar to eyes on a potato) should be planted no deeper than ½ to 1 inch underground.

All links to external sites open in a new window. You may return to the University of Arkansas System Division of Agriculture web site by closing this window when you are finished. We do not guarantee the accuracy of the information, or the accessibility for people with disabilities listed at any external site.

Links to commercial sites are provided for information and convenience only. Inclusion of sites does not imply University of Arkansas System Division of Agriculture's approval of their product or service to the exclusion of others that may be similar, nor does it guarantee or warrant the standard of the products or service offered.

The mention of any commercial product in this web site does not imply its endorsement by the University of Arkansas System Division of Agriculture over other products not named, nor does the omission imply that they are not satisfactory.