Should Russian Sage be cut back in the fall? I'm seeing two opinions out there! Thanks.
Deschutes County Oregon
Thanks for your question about pruning Russian sage. None other than Oregon's perennial shrub expert Neil Bell says in an OSU publication:
Summer- and fall-blooming shrubs, on the other hand, flower on new wood. They’re fair game to prune now [in February.]. Some include rose of Sharon (Hibiscus syriacus), PeeGee hydrangea (Hydrangea paniculata) winterberry (Ilex verticillata), Japanese spiraea (Spiraea japonica) and a lot of the subshrubs like Russian sage (Perovskia atriplicifolia), hardy fuchsia (Fuchsia magellanica), cape fuchsia (Phygelius) and Caryopteris.
Suggest you read his entire article, and remember that a year-old shrub needs less pruning (if at all) than a 2-3 foot plant. If in doubt, wait until next year.
Hope this is helpful!