Meeting The Sustainable Needs of Broomfield, Colorado by providing advocacy, resources and education on sustainable issues
Sustainable Broomfield



The CSU Extension is now at the Library!

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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

Please visit Broomfield County Extension at its new location in the Broomfield Library. Regular hours are 9 a.m. to 1 p.m., Monday through Thursday, with horticulture specialists on hand Tuesdays and Thursdays.

The office is only open by appointment in an effort to stop the spread of COVID-19. Please call (720) 887-2286 to schedule a visit or use these online resources instead. 

Send questions to Please attach photos, if possible.

Submit your question using this interactive form.…/1FAIpQLSct4JKmdr0SGcIXxI…/viewform

Ask a Master Gardener Helpline
Broomfield residents may leave a detailed message at 303-464-5554. A local Colorado Master Gardener or horticulture specialist will return your call within two business days.

Colorado State University Extension Website
You will find science-based answers to many of your yard and garden questions on the CSU Extension website.…


Grow and Give
Grow and Give is a modern victory garden project with an Extension twist. Started in 2020 to make a local impact on food security, Grow and Give connects backyard and community gardens with food donation sites across the state. 

Register your garden today to join the Grow and Give community and log your donations to friends, family, and neighbors. Whether you’re an expert or a brand new gardener, CSU Extension is here for you with trusted, practical resources to support you through the growing season and beyond.

Open Space Series

Spring 2021 Broomfield /Boulder County Speakers & Events


City of Broomfield Nature Programs


Free programs such as family sunset/moonlight walks and preschool morning nature walks are offered by the Broomfield Nature Program. Explore Broomfield’s open lands guided by a local naturalist! Click here for current program information

Family Sunset & Moonlight Walks
Get a different feel for Broomfield’s open space as you explore it with a naturalist at sunset or after dark. Everyone is welcome! Please bring a flashlight. No registration is required for this free program.  

Preschool Nature Walks
These Wednesday morning walks are designed especially for preschoolers and their guardians. Take a walk with naturalists through Broomfield’s open space areas. Learn about the animal and plant life in your own backyard. Explore the area and have fun! No registration is required for this free program. 

Friday Kids’ Classes
Explore the natural world from a kids’ point of view with lots of hands-on activities to learn about the world around us. Children aged 6-11 years old are welcome! Price is $3 per child and classes are limited to a maximum of 25 children.”


Broomfield Open Space and Trails Programs


Broomfield 100
“Attention Broomfield community, looking for something outdoors this summer? The Broomfield 100 gives you the opportunity to explore the beauty and diversity of nature in your own backyard! Share the wonders of the great outdoors with your children, have fun, win prizes, and be healthy at the same time! See the website for more information.

Broomfield Trail Adventure
Trail users come celebrate National Trails Day on Sat., June 5 in Broomfield! This annual event features a new trail section each year and is great for all ages and ability levels. While on the trail, join “Broomfield Naturalists” on iNaturalist to find as many animals and plants as you can! Visit the website for more info.”

Eco-Leaders 2.0 Training -Circular Economy: Going Beyond The Bin

Eco-Leaders 2.0 Training – Extended Producer Responsibility

Your Role in Protecting Our Watersheds

– Kill your Kentucky Bluegrass. Swap out your lawn for low-water plants.
– Lean on your community leaders (HOAs to federal government).
– Fix broken sprinkler heads.
– CYCLE-SOAK – 9 or 15 minutes twice in the middle of the night.
– Fix leaks in your home. (monumental bills)
– Buy water efficient fixtures.
– Pick up poop and litter – Drains to creek!
– Use a public carwash that recycles water – Drains to creek!
– Dispose of chemicals correctly. Don’t just pour down drain or into sewer!
– Reduce or quit use of sidewalk salt.
– Test your soil. Phosphate-free fertilizer. Apply at the right time!

Find more information at

The Real Footprint of our Stuff

How resources become products and their upstream impact

Upstream Impact Slideshow

We reached out to all candidates running for Mayor and City Council and requested their responses to the exact same three sustainable questions.  Here are their responses:  Broomfield Candidate Sustainability Responses 2019

Please Note:  Sustainable Broomfield is not endorsing any candidate.  We simply wanted to provide a forum for candidates to express their views on sustainability.

Also, if a candidate is not included in the document, it is because we did not receive a response to our request.

Maintaining Fertility for Your Lawn & Minimizing Watering Needs

“In maintaining the fertility of our lawns, there is no need for synthetic fertilizers. Synthetic fertilizers supply a lawn with nitrogen, phosphorus, and potassium (“N-P-K”) – the three basic nutrients plants need to survive – which then gives the plant little incentive to grow deep roots, and to produce sugar to exchange with soil microbes for the soil’s own storehouse of nutrients. The result is that chemical fertilizers make your lawn and other plants dependent on them, and dependent on frequent watering because of the resulting shallow, undeveloped root system. 

In comparison to N-P-K synthetic fertilizers, compost contains only small amounts of nitrogen, phosphorus, and potassium. It’s classified as a “soil amendment” rather than a fertilizer for that reason. What compost does contain is a micro-universe of beneficial soil microorganisms, and well-decomposed organic matter to feed them. Rather than the jolt of bright green that you might get from a fertilizer, compost slowly releases plant-available nutrients over time – years, in fact.

The result of applying compost rather than synthetic fertilizer is that not only does grass grow deeper roots, but the soil reaches a new level of microbial life and stays that way for a long time, which makes your lawn much more resilient to scalding summer sun. Compost also creates a spongy soil able to soak up water that might otherwise run off, while at the same time opens up any hardpan (a hardened layer) to allow water to infiltrate deeper into the soil.

One final tipLeave grass clippings on your lawn. Clippings will quickly decompose on healthy, living soil, providing more organic matter food for your soil microbes.”

WATCH: The Soil Story

The Soil Story is an engaging short video that examines important connections between soil, farming, compost, and the carbon cycle on Earth. Pashon Murray of Detroit Dirt narrates this story of soil, explaining how it could save our planet & reverse climate change.”