Stevens County Noxious Weed Control Board
This web site will help you identify & control noxious weed with information and photographs to aid you.

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Clary sage
Salvia sclarea L.                          
Mint family

Key identifying traits

  • Has characteristic square stem of mint family
  • Flower color range from white-pink-blue-purple
  • Flower petals divided into arching upper lip and a lower lip, also characteristic of the mint family
  • Large showy bract under each cluster of flowers
  • Erect plant with many branched flower spikes
  • Plant covered with gland tipped hairs with an unpleasant odor
  • Leaves large and mostly basal with toothed margin

Biology and ecology

  • A tap rooted biennial 20" to 6' tall
  • Sometimes grown as an ornamental and a traditional producer of essential oils used in perfumery, distilling and tobacco flavoring
  • First year growth as a fuzzy hairy basal rosette
  • Quite competitive on dry sunny sites
  • Can hybridize with Meadow clary if on same site
  • Clary sage is native to southern Europe

Control

Prevention Learn to identify plants; know your property; beware of fill dirt, hay and seed from outside your area

Biological None- the closely related Mediterranean sage in Idaho is apparently reduced by a weevil

Cultural Good vegetative cover helps but does not totally prevent spread from adjacent disturbed areas

Mechanical Will not withstand regular tillage; pulling and digging are effective prior to seed production; cutting may be effective if repeated

Chemical Several have been effective for SCNWCB staff if a penetrating surfactant is used to get through the hairs to the leaf surface.  Depending on the site, picloram plus 2,4-D, glyphosate, clopyralid plus 2,4-D and clopyralid plus triclopyr have all been effective.  Clary sage is not listed in the PNW Weed Management handbook for specific chemical recommendations


flowering plants

cs2.jpg (40525 bytes)
rosette

cs3.jpg (36250 bytes)
inflorescence


Where found
Only one rangeland site of less than one acre in Stevens County has a pure wild Clary sage infestation but another site of predominately Meadow clary shows indications of hybridization of the two.

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weedboard@co.stevens.wa.us
Last Edit: March 25, 2015
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