Managing Invasive Plants

Posted on: June 28th, 2019

Resources for Managing Invasive Plants

The Colorado Weed Management Association (CWMA) website for invasive plants (weeds) in Colorado:                                                               https://www.colorado.gov/pacific/agconservation/noxious-weed-species#a

Many people like to mow before seed set. More specific suggestions tailored to each plant are at the link above. Get the cheatgrass (called Downy brome on this website) while it is still green! It turns purple and then brown and goes to seed soon!

There are often good Extension videos on Youtube that help in identification and management.                                                             Search on Youtube with the botanical (Latin) name to make sure you are getting the right plant.

Replace the invasive plants with native plants from this list: Low-Water Native Plants for Colorado Gardens: Mountains 7,500′ and above  https://conps.org/wp-content/uploads/2017/08/Low-Water-Native-Plants-for-CO-Gardens-Mountains.pdf

And from LWOG, which is now LWC (Lefthand Watershed Center).

https://lwog.org/wp-content/uploads/2019/05/EWP-Technical-Memo_Weed-Mgmt-Guide_20170822.pdf

 LWOG’s announcement of their name change and new work in the uplands (=us): https://lwog.org/

Invasive Plants from the CWMA website above that we have seen in Gold Hill. Please add to this list as needed:
Purple loosestrife
Orange hawkweed
Bull thistle
Absinthe wormwood
Canada thistle
Common tansy
Dalmation toadflax
Yellow toadflax
Dame’s rocket
Hoary cress
Perennial pepperweed
Leafy spurge
Mayweed chamomile
Musk thistle
Oxeye daisy
Russian olive (tree)
Spotted knapweed
Sulfur cinquefoil
Bulbous bluegrass
Chicory
Common burdock
Common mullein
Downy brome (aka Cheatgrass)
Field bindweed
Johnsongrass
Poison hemlock
Redstem filaree