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Arapahoe County Extension provides trusted, practical education to help you solve problems, develop skills and build a better future.

This calendar is a list of all public event and classes offered by Arapahoe County Extension. Some of the virtual classes may be offered by Extension offices in partnering counties. Other events may be offered that are closed to the public and available to program participants (e.g. 4-H members, Colorado Master Gardeners). Click here if you are interested in becoming a 4-H member, Colorado Master Gardener or Native Plant Master volunteer.

You may also request a program for your organization or school. Options for adults are youth are available.  

For questions, please email CSU-Extension@arapahoegov.com or call the office at 303-730-1920.

To view other great programs Arapahoe County Extension has offered, please visit our Past Events page!


May 2022


Cottage Foods Safety TrainingMay 6, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Soil Health and Amendments – May 6, 12:00 p.m.-1:00 p.m. Learn what it takes to have healthy soil and which soil amendments can help you get there! Event Speakers: Dan Goldhammer, CSU Extension – Denver County and Sarah Schweig, CSU Extension – Broomfield County. Registration for webinar required.

Native Plant Master Course at Roxborough State Park – May 10, 17, and 24, 4:00pm – 8:00 p.m. Take a Native Plant Master course at this state park during three outdoor field sessions where you will learn common and scientific names, ecological relationships and human uses of 40 – 50 plants. You will develop skills in using family features and a botanical key to identify plants. Course includes special emphasis on natives useful for landscaping and invasive plants that threaten native ecosystems. Registration for this course is full.

Native Plant Master Course at Cherokee Ranch – May 12, 19, and 26, 8:30 a.m.-1:00 p.m. Cherokee Ranch and Castle is a private property with an elegant and interesting castle and over 3000 acres of rolling hills, forest and meadows with spectacular views. NPM class will study an array of fantastic flowers, trees and shrubs on short trails with some uneven footing. Hiking poles advised for those unsteady on their feet, but not usually required. Will meet at the “Picnic House.” Registration for this course is full.

Bulbs for Summer Blooms – May 13, 12:00 p.m.-1:00 p.m. Planting bulbs this spring for summer blooms is a great way to add color and texture to your garden. Even Speakers: Cassey Anderson, CSU Extension – Adams County and Alison O’Connor, CSU Extension – Larimer County. Registration for webinar required.

Mediterranean Diet Meal Planning on a Budget – May 17th, 12:00 p.m.-1:00 p.m. or 7:00 p.m.-8:00 p.m. Join us as we learn about planning meals to save time and money, and the many health benefits of the Mediterranean Diet. Includes planning and shopping templates, recipes, and more! Free to attend, registration is required.

Bemis Public Library Monthly CMG Series: Pollinators – May 17, 6:00 p.m. Arapahoe County Master Gardeners will be presenting on pollinators in Colorado. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.

Growing Backyard Berries – May 20, 12:00 p.m.-1:00 p.m. Learn how to grow small fruits in your own backyard including strawberries, raspberries and more! Event Speaker: Amy Lentz, CSU Extension – Weld County. Registration for webinar required.

“Walking Amongst the Natives” – May 21, 10:00 a.m.-12:00 p.m. A walk and talk exploring native plants in Western Elbert County with local Native Plant Masters Raylene Owen and Cathy Ramsey. Registration required.

Plant Besties – Companion Plants – May 27, 12:00 p.m.-1:00 p.m. Separate the friends from the frenemies–and the truth from the wishful thinking! Event Speaker: John Murgel, CSU Extension – Douglas County. Registration for webinar required.


June 2022


Native Plant Master Course at Sandstone Ranch Open Space – June 2, 9, and 16, 8:30a.m. – 1:00 p.m. Come explore and learn with us at this amazing facility. We will introduce you to 40-60 plants, using family features and a botanical key to help identify species. Ecological relationships, human connections and the potential to use some of these plants in your landscaping will be discussed. In addition, we will emphasize understanding noxious alien plants and the challenge they present to our native environment. Registration for this course is full.

Beauty and the BeesJune 3, 12:00 p.m.-1:00 p.m. Learn about who our more common pollinators are and how you can support them by creating a habitat in your yard. Event Speakers: Lisa Mason, CSU Extension – Arapahoe County and Deryn Davidson, CSU Extension – Boulder County. Registration for webinar required.

Urban Ranchers Day Camp – Tuesday June 7 – Friday, June 10, 8:00 a.m.-12:00 p.m. Join us for a fun filled adventure at the Arapahoe County Fairgrounds. The Urban Rancher Camp brings the farm to urban kids. Youth learn first-hand about agriculture, livestock, and animal care and husbandry. Youth will learn how to care for and handle several animals throughout the camp – such as chickens, cows, horses, goats, sheep, and llamas . Camp counselors will lead daily games and projects which will help youth explore where their food comes from. On Friday, campers will show off their new farm skills for parents and friends and we will celebrate at a cook out from 12:00 p.m. to 1:30 p.m. Registration for this event is full.

Native Plant Master Course at Dawson Butte Ranch Open Space – June 9, 16, and 23, 9:00 a.m.-1:00 p.m. Dawson Butte in Douglas County Open Space has a total of over 7 miles of wide and mostly flat trails which meander through forests and meadows with spectacular views and an amazing array of wildflowers, shrubs and trees. Class hikes are approximately one mile in length. Registration for this event is full.

Cottage Foods Safety Training June 10, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Bemis Public Library Monthly CMG Series: Container Gardening – June 21, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Container Gardening. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.

Meal Planning with Confidence; Summer 2022 Edition – June 22, 12:00 p.m.-1:00 p.m. or 7:00 p.m.-8:00 p.m. Please join us as we explore the many benefits of meal planning, while learning the basic steps for creating and organizing a meal plan to fit your needs. This course includes printable meal planning and shopping list templates, a Colorado fresh produce calendar to help you discover when Colorado produce will be in season this summer, recipes, and more! Free to attend, registration is required.


July 2022


Cottage Foods Safety Training July 8th, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Weed Walk – July 8, 5:00 p.m. Join Dan Nosal, Rangeland Management Specialist for the Natural Resources Conservation Services, Willie Wilkins and Raylene Owen for an informative session on weeds. They will discuss noxious weeds and invasive species, provide help on weed identification, and share management options. Register now!

Model Rocketry Launch Day Extravaganza 2022 July 9, 7:00 a.m.-12:00 p.m. Have you ever wanted to learn more about Model Rocketry? Are you interested in learning more Model Rocketry skills? Participants ages 8 – 18 will learn more about Model Rocketry, have the chance to launch rockets and watch demonstrations. Snacks will be provided. Registration required.

Bemis Public Library Monthly CMG Series: Xeric and Water Wise Gardens – July 19, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Xeric and Water Wise Gardens. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.


August 2022


Cottage Foods Safety Training August 10, 5:00 p.m.-9:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Bemis Public Library Monthly CMG Series: Composting – August 16, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Composting. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.


September 2022


Native Plant Master Course at Plains Conservation Center – September 8, 15, and 22, 8:00 a.m.-12:00 p.m. Take a Native Plant Master course that includes three outdoor field sessions where you will learn common and scientific names, ecological relationships and human uses of 40 – 50 plants. You will develop skills in using family features and a botanical key to identify plants. Course includes special emphasis on natives useful for landscaping and invasive plants that threaten native ecosystems. Registration information coming soon!

Bemis Public Library Monthly CMG Series: Common Plant Diseases – September 20, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Common Plant Diseases. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.

Cottage Foods Safety Training September 23, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.


October 2022


Cottage Foods Safety Training October 14, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Bemis Public Library Monthly CMG Series: Fall Planted Bulbs – October 18, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Fall Planted Bulbs. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.


November 2022


Cottage Foods Safety Training November 2, 5:00 p.m.-9:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.

Bemis Public Library Monthly CMG Series: Houseplants – November 15, 6:00 p.m. Arapahoe County Master Gardeners will be presenting about Houseplants. In person at Bemis Public Library – 6014 S Datura Street Littleton, CO 80120, no registration required.


December 2022


Cottage Foods Safety Training December 2, 9:00 a.m.-1:00 p.m. Learn food safety guidelines and the specifics of operating a home-based cottage food business. Upon completion of the webinar and exam, receive a 3 year food safety certificate. Registration closes 4 days prior to event.