Colorado has over 3,000 native plant species, but Colorado’s noxious weeds are non-native plants. Learn how to identify Colorado’s noxious weeds, the best control method for you, what plants are poisonous to your livestock, and the resources available to Larimer County residents through the Larimer County Weed District.


Photo of Leafy Spurge

Resources Are Available

The last few years have been difficult for farm and ranch families. Many are experiencing emotional and financial stress as a result. There are several signs and symptoms of when a farm family is in need of help. 

We have below a list of resources that may be helpful:

A rancher stands by a fence

The beauty of Colorado’s forests and wildlife attract many to Colorado, yet we don’t always know how to safely live in forested areas or how to manage unwelcome wildlife. These resources will guide you on how to create a defensible space around your home and provide information and best practices for wildlife management.

A deer stands in a forest

There are many concerns small acreage landowners have. Whether you’re trying to identify a plant you found on your hike or property, need your soil, water or plant analyzed, or need to know where to go to apply for a well permit, we’ve narrowed down the resources to help you!

A photo of columbine

Colorado Columbine (Aquilegia coerulea). Photo credit: Fred McClanahan

Non-Discrimination Statement

Colorado State University Extension is an equal opportunity provider. Colorado State University does not discriminate on the basis of disability and is committed to providing reasonable accommodations. CSU’s Office of Engagement and Extension ensures meaningful access and equal opportunities to participate to individuals whose first language is not English. Colorado State University Extension es un proveedor que ofrece igualdad de oportunidades.

Colorado State University no discrimina por motivos de discapacidad y se compromete a proporcionar adaptaciones razonables. Office of Engagement and Extension de CSU garantiza acceso significativo e igualdad de oportunidades para participar a las personas quienes su primer idioma no es el inglés.

Larimer County Office of Colorado State University Extension

Send email

1525 Blue Spruce Dr.
Fort Collins, CO 80524-2004

Phone: (970) 498-6000 

7:30 a.m. - 4:30 p.m.
Monday - Friday

Our office follows the Larimer County Holiday Calendar for office closures.