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The CSU Extension office in Broomfield City & County provides assistance and programs for citizens in the areas of Horticulture: Yard & Garden

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What’s New in Broomfield County

Broomfield County Extension collaborates with businesses and organizations to extend the reach of Extension programming. Check out what’s new and happening in Broomfield County and opportunities to learn and participate.

 Centennial Outreach by Americorps Volunteer at Broomfield LibraryView Video

Watch our AmeriCorps Team in Action

CSU Extension’s dedicated AmeriCorps members have created and distributed more than 650 take-and-make STEM kits to Broomfield area children in the second half of 2020. This effort included a recent stop at Centennial Elementary in partnership with Community Food Share and the Broomfield Library. Team member Diamila Konate, pictured left, helped hand out STEM kits and free books. Watch this video to learn more about this community outreach effort.

Didn’t receive a kit? No problem! Most of the kits can be recreated using common household items. You can follow along with these instructions.

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CSU Extension Green School

The Certified Colorado Gardener Program is offering multiple online gardening classes starting in January 2021, including a certifying FULL COURSE option and multiple SHORT COURSE options. Regardless of the course, you’ll receive in-depth horticulture training provided by CSU faculty, staff, and specialists. There is NO volunteer commitment with the Certified Program. For more information (including fees) and to apply online, visit the Certified Colorado Gardener website.

Registration deadline is Dec. 31.

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FREE Gardening Webinars

CSU Extension offered a full slate of gardening webinars this fall presented by horticulture experts from across the state. In case you missed them, you can find links to the recorded classes by scrolling down the column to the right or by visiting the Co-Horts Blog website.

kids doing chemistry experimentLearn More

Making a Difference in Broomfield!

CSU Extension now has three AmeriCorps service members working out of its Broomfield office. These important team members develop and deliver STEM programs in out-of-school settings to local students.

Hands holding seedling in soil
Submit a Question

Need Gardening Advice? Ask a Master Gardener.

Broomfield Master Gardeners are available year-round to answer your horticulture-related questions. Call the helpline at 303.464.5554, send an email (and photos!) to,  or submit your question using this form. Be sure to check our calendar next spring for Ask a Master Gardener times and locations.

Broomfield Master Gardener CoordinatorRead More

We’re on Insta!

Each week this spring, the Colorado Master Gardener Instagram account will feature a different member of CSU Extension horticulture staff sharing their gardening projects and insights from their homes across the state. This week, Broomfield’s very own Master Gardener Coordinator, Nancy Klasky, talks plant propagation, seed starting, and getting your raised bed started.

Broomfield Library Entrance

Our Location

Broomfield County Extension is located in the Broomfield Library and is open by appointment only at this time. Please schedule a time to consult with horticulture staff or to drop off a plant sample.

grass in snow

Preparing the Perennial Garden for Winter

This class covered what should you be doing now to prepare your perennial garden for Spring. In case you missed it, here’s a Planttalk Colorado™ article on winterizing perennials.

A group of students learning how to make a birdhouse

Look what we made!

CSU Extension Broomfield and CSU Extension 4-H STEM specialists joined staff from Broomfield Library and Broomfield Open Space and Trails in a full-day outreach event at Centennial Elementary School on Jan. 24. Students built and decorated bird houses, learned the basics of birding, and contributed their bird sightings to the Broomfield Naturalists citizen science project.