Gardening & Horticulture

Broomfield County Extension provides research‑based guidance and locally relevant expertise to help residents garden successfully in Colorado’s unique climate. Programs and resources include the Master Gardener Program, public demonstration and teaching gardens, and practical tools designed to support healthy, sustainable landscapes and food gardens throughout the community.

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Clusters of pink crabapple blossoms and buds blooming on a tree branch, with green leaves and additional pink flowers filling the background.
A group of volunteers stand along a sidewalk holding rakes and gardening tools during a spring cleanup at a demonstration garden, with shrubs and trees behind them on a sunny day.

Broomfield Master Gardeners

The Colorado Master Gardeners of Broomfield are a small, but dedicated group of local volunteers willing to assist with your gardening and horticulture questions. Each Master Gardener has received extensive training on a variety of topics which affect Colorado landscapes, and they stand ready to assist.

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Demonstration/Teaching gardens

Broomfield County Extension offers public demonstration and teaching gardens that highlight practical and appropriate gardening practices. Maintained by Broomfield Master Gardeners, the demonstration garden features a xeriscape design, while the teaching garden at Brunner Farmhouse and Gardens includes perennial beds and raised‑bed vegetable gardens used for hands‑on workshops and learning opportunities hosted by CSU Extension.

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A landscaped demonstration garden with a winding concrete path, colorful flowering plants, shrubs, and trees, featuring a decorative sculpture and a bench surrounded by lush greenery on a sunny day.
A wooden drawer pulled open to reveal labeled seed packets organized inside a seed library, with a handwritten card listing plant details such as tomato variety, harvest year, and reference number from City and County of Broomfield Extension.

Broomfield Seed Library

The Broomfield Seed Library is a community resource that provides free seeds to help residents grow food, flowers, and plants at home. Operated by CSU Extension and located inside the Broomfield Library, the Seed Library encourages gardening, food resilience, and seed sharing by making a variety of fruit, vegetable, herb, and ornamental seeds available throughout the year.

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CSU soil testing

The CSU Soil, Water and Plant Testing Lab at the SPUR campus in Denver offers year-round soil testing. It’s a great way to check the quality of soil in your yard and learn to improve it. Visit the Soil, Water and Plant Testing Laboratory website to learn more on how to use their services

Soil, Water and Plant Testing Lab
A row of clear glass jars filled with soil samples arranged on a laboratory counter, with metal lids placed nearby and labels visible on the jars in a research setting.

Local resources and services

  • Ask a Colorado Master Gardener – During the growing season (April through October), Broomfield Master Gardeners answer questions at the CSU Extension Office and other convenient locations. View the upcoming schedule.
  • Colorado Master Gardener Helpline – Trained volunteers are available to assist Broomfield residents year round.  Leave a message for a Broomfield Master Gardener at 303-464-5554, send an email (with photos!) to BroomfieldMG@colostate.edu, or complete this interactive form.
  • Diagnostic Site Visits – For a $75 fee, a CSU Extension Horticulture Agent will provide an on-site consultation for homeowners within the City and County of Broomfield. For more information or to schedule a visit, please fill out our contact us form.