Giant Reed
Garlic Mustard

Himalayan blackberry


The following is a list of Coastal ISC’s current Priority Invasive Plants within the Management Categories: Prevent, Eradicate, Control and Contain. Click on any of the species images for more information on identification, management, and links to additional resources. 

Download the Coastal ISC Priority Invasive Plant List Here.   

The categorization of species is representative of the Coastal ISC management area as a whole. Management actions will vary based on different sub-regions and specific site conditions. The Capital Region (CRISP), sub-region list.

Please see the BC Invasive Species Council for a comprehensive list of Regulated Invasive Plants in BC. Keep a look out for new potentially problematic invasive species, see B.C. Proposed Prohibited Noxious Weeds (published by the BC government) and help us prevent these plants from invading our natural ecosystems.

To bring new plants of concern forward for consideration to be added to this Priority Invasive Plant list, email us at with your rationale and it will be brought forward at the next quarterly board meeting for discussion.

Invasive Plant Profiles (click the photos to find out more):




               (Peuraria montana)

                    Giant Hogweed

         (Heracleum mantegazzianum)

                     Garlic Mustard

                   (Alliaria petiolata)

                      Milk Thistle

               (Silybum marianum)


Screen_Shot_2016-05-30_at_3.08.14_PM.png                    Screen_Shot_2016-06-08_at_11.20.24_AM.png      Screen_Shot_2016-05-30_at_3.09.15_PM.png        Screen_Shot_2016-05-30_at_3.09.44_PM.png

                      Wild Chervil

               (Anthriscus sylvestris)

                    Carpet Burweed

                    (Soliva sessilis)

                   Orange Hawkweed

               (Hieracium aurantiacum)

                   Diffuse Knapweed

                  (Centaurea diffusa)





                 Spotted Knapweed

               (Centaurea maculosa)

                 Japanese Knotweed

                  (Fallopia japonica)

                   Poison Hemlock

               (Conium maculatum)

                   Yellow Flag Iris

                 (Iris pseudacorus)




                     English Holly

                  (Ilex aquifolium)

                        English Ivy

                      (Hedera helix)

                  Butterfly Bush

                (Buddleja davidii)


                   (Ulex europaeus)



Screen_Shot_2016-05-31_at_3.24.55_PM.png       Screen_Shot_2016-06-08_at_3.06.03_PM.png          Screen_Shot_2016-06-08_at_3.19.51_PM.png Screen_Shot_2016-06-08_at_3.34.14_PM.png

         Yellow Garden Loosestrife

          (Lysimachia vulgaris)


              (Echium vulgare)

                      Sulphur Cinquefoil

                      (Potentilla recta)

                Hoary Alyssum

              (Berteroa incana)



 Screen_Shot_2016-06-08_at_3.39.27_PM.png          Screen_Shot_2016-06-21_at_10.05.19_AM.png Screen_Shot_2016-06-21_at_10.08.07_AM.pngYellow-Thistle-Field-710.jpg 

                Hoary Cress

            (Cardaria draba)

                          Common Fennel

                       (Foeniculum vulgare) 

               Lesser Celendine

                (Ficaria verna) 

         Yellow Star Thistle

      (Centaurea solstitalis) 




Additional Information:

Invasive Plant Council of BC – Invasive Plants

BC Government Information on Invasive Plants