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The Extension office provides assistance and programs for the community in five main areas: Agriculture, Horticulture, Family and Consumer Science, Natural Resources and 4-H Youth Programs.
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Horticulture Programs

Your information source for gardening and horticulture related programs and classes through Boulder County Extension.

Check here for the very latest articles and information in the horticultural world


Native Plant Master logo Native Plant Master
Learn about the values and characteristics of Colorado’s native plant species, as well as issues surrounding non-native, invasive plants.
Harvest of peppers Community Garden
There is a community garden located at the Boulder County Extension office.  The garden consists of several dozen plots that can be rented by community members who are in need of a place to garden.
Demo Garden Demonstration Gardens
The Boulder County Extension office is home to several demonstration gardens. Visit the Plant Select, Rock, Hell Strip and Native Gardens. All of the gardens are located around the Natural Resource Building on Boulder County’s Fairgrounds in Longmont, Colorado.
Yellow flowers Boulder County Master Gardener Program
The Colorado Master Gardener program has played an active role in the education of Boulder County gardeners for more than 35 years.
Hand holding soil and seedlings Horticulture Services
Dig in! Get green industry and gardening help from your local Boulder County Extension office. We offer consultation services including site visits, plant ID, disease diagnosis, and garden problem solving help.

PlantTalk Colorado

Planttalk Colorado™ is sponsored by Colorado State University Extension, Denver Botanic gardens, and the Green Industries of Colorado. It provides information on over 500 horticulture topics from Colorado horticulturists and professionals. For additional information on gardening, see Extension Publications.

Choose a timely topic video below from PlantTalk Colorado.

Harvesting Rhubarb by Cassey Anderson, Adams County Extension

Weed Barriers by Alison O’Connor, Larimer County Extension

Growing Lavendar in Colorado by LuAnn Aiken and Lina of Tagawa Gardens

Protecting Garden and Potted Flowers from Cold using Frost Blankets by LuAnn Aiken of Tagawa Gardens