Home > Weeds > Weeds to Know

Populations of invasive weed species are exploding everywhere, and our district is no exception. In this section of the website you can learn about a number of weeds, some of which we are actively soliciting help locating as part of our Early Detection and Rapid Response (EDRR) program and some that are very common and we simply want to pass on control information to you. Weeds that are a part of our EDRR program are infrequent or have not yet arrived in our district. Our goal is to make sure they never become established in our region. Weeds that are established and widespread, such as blackberry, ivy, and scotch broom are no less threatening to our regional landscape. These noxious weeds are just too abundant for our staff to wage a meaningful, regional control effort. It is the responsibility of the land owner to manage these weeds on their property. Taking action to remove these species now is the best option for keeping your land and the land around you healthy, and avoiding higher costs and headaches associated with removal in the future after populations have increased.


  • Blackberry

  • Common Gorse

  • English Ivy

  • False Brome

  • Garlic Mustard

  • Giant Hogweed

  • Knotweed

  • Kudzu

  • Old Man's Beard
    (Traveler's Joy)

  • Orange Hawkweed

  • Pokeweed

  • Purple Loosestrife

  • Spurge Laurel

  • Yellow Starthistle