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The Extension office provides assistance and programs for the community without discrimination in five main areas: Agriculture, Horticulture, Family & Consumer Science, Natural Resources and 4-H Youth Programs.

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Ask a Master Gardener

Our volunteers are out of the office, but are still able to help you with your home gardening questions by email! Send us your detailed questions and any relevant photos of the problem plant to us at mggpa@bouldercounty.org

We’re here to help, even when we’re working remotely!

Horticultural Services

CSU Extension staff is working remotely at this time. If you have questions about HOA or Green Industry site visits, please contact Deryn Davidson by email ddavidson@bouldercounty.org. ***Plant and insect sample ID and diagnostic services are currently suspended. We apologize for the inconvenience.***

What to Expect During Green Industry or HOA Site Visit

Click here to expand or collapse this section, which contains information on the Green Industry & HOA Site Visits.

Who: These site visits are for any commercially managed property including HOAs, parks, churches, businesses, etc. (not individual homeowner’s yard) and/or Green Industry clients with plant/landscape issues/questions.

What: The Boulder County Horticulture Agent will walk the property and assess overall landscape health and management. The Agent will identify plants and weeds, look at irrigation issues and answer your specific questions. There is a $75/hr. site visit fee and they typically last 1-2 hours depending on the size of the property. For an additional $25 the Agent will write up a comprehensive report detailing everything discussed during the visit and will include recommendations and resources.

How: Contact the Horticulture Agent at ddavidson@bouldercounty.org or 303-678-6386 to set up an appointment.

When: Site visits are typically conducted during the growing season (April-October), but they will be scheduled outside of that time if necessary.

Boulder County COVID-19 site visit protocol:

The Horticulture Agent and client will maintain a minimum of 6’ physical distance (10’ is preferred) during the site visit. No momentary violations of this distance are allowed at any time.

The Horticulture Agent will either sanitize their hands prior to and after the visit or wear gloves.

Both parties must wear a mask at all time. If the client is unwilling to wear a mask, it will be the Agent’s decision whether to proceed or stop with the site visit.  If at any time, the client decides to discontinue wearing their mask, the Agent may make the determination to end the visit.

The Agent will not provide the client with any printed material on-site and an invoice for services rendered will be sent after the visit. Materials that cannot be sent via e-mail will be mailed through the United State Post Office.

Client’s contact information will not be shared with anyone unless contract tracing is required for COVID-19.

*** On the day of the scheduled visit, if you have or have had any of the following symptoms: fever, cough, body aches, fatigue or chest tightness, or if you have been in contact with someone who has experience these symptoms in the last two weeks, please be courteous and call to reschedule the site visit or allow the Agent to perform the visit alone. The Agent will provide the client the same courtesy if they are not feeling well. ***

Whats News?

Niwot woman to share experience working in one of world’s oldest botanic gardens

“When Deryn Davidson was a student studying horticulture at Colorado State University in 2004, she applied to be an intern at the Royal Botanic Gardens Kew in Richmond, United Kingdom — the world’s oldest botanic gardens.” link to the article above to read more.
Deryn Davidson BCE Horticulture Agent
LONGMONT, CO – AUGUST 18, 2020 : Deryn Davidson, in 2004, helped care for LondonÕs Royal Botanic Gardens, Kew, which is one of the oldest botanic gardens in the world. This included caring for the queen’s roses. This week she hosts a virtual program to talk about the experience. (Cliff Grassmick/ Staff Photographer)

Let’s Grow Together

­ Grow & Give – Colorado Master Gardener

Learn to grow food and donate extra locally. The resources in this link are designed to help you grow your own food this year and beyond. You got this, Colorado! Colorado State University Extension & Master Gardeners are here to help every step of the way. More resources are added weekly and will change with the season. Learn more about the history of victory gardens.

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

For additional information on gardening, link to Planttalk Colorado below AND see Online Publications.

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, Rain Garden, Grass Plots 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. Link to Planttalk for information on over 500 horticulture topics from Colorado horticulturists and professionals.

Timely PlantTalk Videos

PlantTalk Colorado Logo
Winter Rose Bush Care by Luan Akin and certified arborist and Tagawa Nursery staff member Mike Landers. Learn how to use rose collars to protect your roses from harsh winter conditions, plus other tips for helping your rose bushes through the winter.

Winter Watering Trees and Shrubs by Luan Akin and certified arborist and Tagawa Nursery staff member Mike Landers. Colorado winters require winter watering of trees and shrubs to stay healthy.
Mulching leaves into your lawn by Dr. Alison O’Connor, Larimer County Horticulture Agent and Dr. Tony Koski, Turf Specialist. Leaving mulched leaves on your lawn adds organic matter to your soil and feeds the earthworms for a healthy lawn in Spring.

Planttalk Colorado – Espanol

Keeping ahead of COVID-19

This rapidly evolving coronavirus (COVID-19) has imposed an unsettling, fluid situation upon our community and its businesses. While the team here still aims to maintain a “business as usual” approach, we are making a number of significant changes to our operations to account for a situation that is far from normal.