Noxious Weed of the Month: Spurge Laurel

by Kate Yturri, Judy Winer and Gwen Stamm, MG Class of 2013

Daphne laureola Spurge Laurel WA NWCB  Spurge Laurel bloom

Please look for Spurge Laurel (Daphne laureola) on your property and in the community.

It is a shade tolerant shrub, typically 2 to 4 ft. tall, with shiny smooth evergreen leaves that are lighter in color underneath and are alternately arranged in dense spirals near the ends of the branches. The light greenish yellow flowers are clustered at the base of the leaves and bloom between March and May. Fruits are little oval black berries with one seed and are poisonous.

Spurge Laurel has been spotted on all the main islands as well as many of the smaller ones, in forest understories and at private residences. The black berries and sap are toxic to humans, livestock, dogs and cats. The plant is native to Europe and North Africa and is rapidly naturalizing throughout San Juan County, shading out natives and suppressing forest regeneration. It is considered a serious threat to Garry oak woodlands and dry madrone/Douglas fir forests in the San Juan Islands and coastal British Columbia. The plant reproduces through seeds, often spread by birds and rodents and through production of root sprouts. Spurge Laurel may be confused with English or Portugal laurel, Pieris, azaleas, or immature rhododendrons but may be distinguished by the densely whorled flowers clustered near the top of the stem.

Not like this!  (Wear gloves!) Photo by Judy Winer.

Not like this!
Wear gloves and cut below soil line.

Hand pulling small plants is effective. Wear gloves and protective gear when handling Spurge Laurel due to the toxins in the sap, stem, leaves and fruits. Larger shrubs can be pulled with a weed wench, treated with a selective herbicide or cut below the soil line. Herbicide applied to the cut stump prevents re-sprouting.

Daphne laureola Spurge Laurel bush WA NWCB Spurge Laurel bush 2

Spurge Laurel is a CLASS B Noxious Weed and is designated for control in San Juan County.
 
 
Photos:
Top two and bottom two courtesy Noxious Weed Control Board of Washington State.

Center photo by Judy Winer.

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2 thoughts on “Noxious Weed of the Month: Spurge Laurel

  1. If anyone on San Juan Island would like to see examples of this weed, let me know. We still have it sprouting here at the Land Bank offices at 328 Caines Street.

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