is cardoon invasive?

Discussion in 'Outdoor Gardening in the Pacific Northwest' started by trishmarg, Jun 7, 2011.

  1. trishmarg

    trishmarg Member

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    Hello,
    I was wondering if the cardoon plant invasive in coastal B.C.?
     
  2. elgordo

    elgordo Active Member

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    I believe it's slightly tender, so no, I don't think it is. I gre a beautiful Artichoke plant for two years, and it never got out of control.
     
  3. elgordo

    elgordo Active Member

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    Apparently invasive in dry, warm climates, but not Delta, I'm sure.
     
  4. Ron B

    Ron B Esteemed Contributor 10 Years of Activity

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    Yes, although able to grow large these are not enough at home here to go wild. The thoroughly prepared A. Jacobson book Wild Plants of Greater Seattle - Second Edition makes no mention of Cynara for that coverage area.
     
  5. elgordo

    elgordo Active Member

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    I guess you can take the precaution too of removing the flower heads before they seed.
     

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