Summit County hosts noxious weeds workshop in Frisco |

Summit County hosts noxious weeds workshop in Frisco

Alli Langley
While some thistles are native to Colorado, musk thistle and plumeless thistles are both non-native and categorized as noxious weeds.
File photo |


What: Controlling Noxious Weeds — A workshop presented by Summit County to help residents preserve the beauty of our land

When: Friday, July 17, from 10 a.m. to 2 p.m.

Where: Summit County Community and Senior Center, 83 Nancy’s Place, Frisco, CO 80443

How much: $10 for adults, $5 for children (lunch provided)

More info: Sign up by Tuesday, July 14, by contacting the Middle Park Conservation District at (970) 531-0127 or Residents who bring a bag of noxious weeds pulled from their property will receive a free bag of native wildflower seeds or grass seed mix.

Absinth wormwood, dalmatian toadflax and myrtle spurge sound like curses Harry Potter would inflict on his enemies.

In fact they are noxious weeds, or non-native plants that are out-competing native species in Summit County and causing local ecosystems to lose their stability and biodiversity.

According to the Summit County 2015 Weed Management Plan, thousands of acres in the county are infested with noxious weeds, which experts estimate increase in population by 15 percent annually if no control measures are imposed. Such an increases poses a serious environmental and economic threat to the county, the plan says.

Noxious-weed populations have likely grown at a much faster rate this year, said County Commissioner Karn Stiegelmeier, because of frequent late spring and early summer rains. That’s why it’s even more important to address noxious weeds this year, she said.

On Friday, July 17, the county will host a public workshop on noxious weeds at the Summit County Community and Senior Center in Frisco from 10 a.m. to 2 p.m. The workshop costs $10 for adults and $5 for children and includes lunch.

Local experts will share information on topics including what makes weeds noxious, lookalikes, means of control, calibrating backpack sprayers and reseeding.

Stiegelmeier said people should understand what makes a weed noxious — as opposed to simply non-native and annoying to gardeners like dandelions — and should join government entities fighting the weeds on public lands by working to eradicate and manage the weeds on their private property.

Noxious weeds are defined by state law, which mandates that counties implement plans to prevent further damage. Summit County is affected by roughly 25 species listed because of their proven adverse impact on community values including agriculture, wildlife, native ecosystems and the outdoor recreation-based economy.

Event organizers extended the sign-up deadline for the workshop to Tuesday, July 14, and residents who bring a bag of noxious weeds pulled from their property will receive a free bag of native wildflower seeds or grass-seed mix.

To register or for more information, contact the Middle Park Conservation District at (970) 531-0127 or

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