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 and youth are available.
- Family and Consumer Sciences (food preservation, food safety, nutrition, health, family financial management, etc.)
- Horticulture (yard, gardening, trees, insects, etc.)
- 4-H School and Community programs (embryology, in-school, after school, summer camps, kit programs, etc.)
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!
April
Seed Starting Workshop
April 6, 10am-11:00am
Englewood Library at Malley Recreation Center
3380 S. Lincoln St., Englewood, CO 80113
$10-$12
Join us for a fun interactive workshop to learn how to grow your own veggies and flowers from seed! Master Gardener Judy Cale will explain how to properly plant and care for your seeds and how germination works. During this workshop, everyone will be planting seeds of their choice in small pots to take home and care for. Register here.
Cottage Food Safety Training
April 10, 9am-12:30pm
Online Zoom Presentation. $50.00
Learn food safety guidelines and the specifics of operating a home-based cottage food business. Better understand the Colorado Cottage Food Act. Upon completion of the webinar and passing the accompanying exam, receive a 3-year food safety certificate. Register here
Planting Cool Season Vegetables and Flowers
April 11, 9:00-10:00am
Cheyenne Arapaho CMG Demo Garden Class at Eloise May Library
1471 S Parker Rd, Denver, CO 80231
Get a jump on the growing season! Learn which cool season vegetables and flowers to grow in spring with Arapahoe County Master Gardeners Jessie Asimus and Elaine Davis. Register here.
Watch Party – The Mind Diet – Arapahoe County
April 14, 11:30am-1pm
CSU Extension, Arapahoe County Office
6934 S. Lima St, Suite B Centennial, CO 80112
Learn about this dietary pattern that may help reduce the risk of Alzheimer’s disease and cognitive decline. This is a watch party. Register here
Seed Starting Workshop
April 25, 11:00am-12:30pm
Bemis Public Library 6014 S. Datura Street
Littleton, Colorado 80120
An expert from CSU Extension will lead this fun, informative seed-starting workshop. Participants will plant a seed in pot and take it home to watch it grow. Great for kids 8+ and their grownups. Register here
Sourdough Basics: Caring for your starter and making bread
April 27, 9am-12pm
CSU Extension, Jefferson County Office
15200 West 6th Avenue #Suite C Golden, CO 80401
$20.00
Join us for an in-person hands on beginner sourdough making class. Learn the basics of making & maintaining your starter. Participants will receive a starter to take home. Register here
Sourdough Basics: Caring for your starter and making bread
April 27, 6pm-9pm
CSU Extension, Arapahoe County Office
6934 S. Lima St, Suite B Centennial, CO 80112
$20.00
Join us for an in-person hands on beginner sourdough making class. Learn the basics of making & maintaining your starter. Participants will receive a starter to take home. Register here
May
Wildflower Walk at Roxborough State Park
May 1, 9am-1pm
Roxborough State Park
4751 Roxborough Drive, Littleton, CO 80125
Join us for a fun and informal tour in the park to identify and learn about the native plants that will be just popping up and flowering at this time. Register here.
What’s Bugging your Garden
May 9, 10:00-11:00am
Cheyenne Arapaho CMG Demo Garden Class at Eloise May Library
1471 S Parker Rd, Denver, CO 80231
Don’t let pests take over your garden! Learn to identify and manage three infamous insects — grasshoppers, emerald ash borers, and Japanese beetles — with Arapahoe County Master Gardeners Elaine Davis and Jessie Asimus. Reserve here
Wildflower Walk at Cherokee Ranch & Castle
May 14, 9:00-12:00pm
Cherokee Ranch & Castle
6113 North Daniels Park Road, Sedalia, CO 80135
This Foothills to Plains NPM Wildflower Walk at Cherokee Ranch & Castle will study an array of fantastic flowering native plants. Register here.
Growing Tomatoes
May 16, 9:30am-10:30am
Hudson Gardens Demonstration Vegetable Garden
6115 S Santa Fe Dr, Littleton, CO 80120
Join us for a free, informal talk on “Planting Tomatoes” at Hudson Gardens Vegetable Demonstration Garden. When is the right time to plant your tomatoes? How do you plant those “leggy” tomato plants? Should you take off the blossoms and fruit on the plants before planting? This fun, practical class will answer all these questions and more. Presented by Arapahoe County Extension Colorado Master Gardeners.
Container Gardening
May 16, 10am-12pm
Hudson Gardens Demonstration Vegetable Garden
6115 S Santa Fe Dr, Littleton, CO 80120
$40
Get ready to dig in and unleash your inner gardener! In this hands-on workshop, participants will explore the art of container gardening, learning how to create vibrant displays of flowers, herbs, and vegetables—all in containers that fit perfectly on patios, balconies, or windowsills. Register here
Garden Kids Club: The Grow Show: The Care and Feeding of a Plant
May 17, 10:00-11:00am
Cheyenne Arapaho Park Community Garden
9200 E. Iowa Ave., Denver, CO80231
Plants are pretty amazing — but what do they actually need to survive and thrive? Join Arapahoe County Master Gardeners Jessie Asimus and Elaine Davis as they take kids on a hands-on adventure exploring the care and feeding of a plant. Register here
Wildflower Walk at Roxborough State Park
May 21, 9am-1pm
Roxborough State Park
4751 Roxborough Drive, Littleton, CO 80125
Join us for a fun and informal tour in the park to identify and learn about the native plants that will be just popping up and flowering at this time. Register here.
Food Preservation – Hot Water Bath Canning Pickling Cowboy Candy
May 21, 6pm-8pm
CSU Extension, Jefferson County Office
15200 West 6th Avenue #Suite C Golden, CO 80401
$20.00
Learn how to safely preserve food for our elevation. In this workshop we will be hot water bath canning cowboy candy which is a candied pickled pepper. Register here.
Riparian 3-day NPM Course
May 26, June 2, June 9, 8am-12pm
South Platte Park and Carson Nature Center
3000 West Carson Drive, Littleton, CO 80120
A 3-day certification course that covers a mix of woody, grasses and forbes native plants with discussions for and on the impact of the continued introduction of non-native species, and more. Register here.
Food Preservation – Hot Water Bath Canning Pickling Grape Tomatoes
May 27, 6pm-8pm
CSU Extension, Arapahoe County Office
6934 S. Lima St, Suite B Centennial, CO 80112
$20.00
Learn how to safely hot water bath can high acid foods. We will be making pickled grape tomatoes. Participants will be making their own jar of pickled grape tomatoes that they can take home (next day). Register here.
Prairie/Plains 3-day NPM Course
May 28, June 4, June 11, 8am-12pm
South Platte Park and Carson Nature Center
3000 West Carson Drive, Littleton, CO 80120
A 3-day certification course that will cover at least 10 native grass species at South Platte Park. Register here.
Sandstone Ranch Wildflower Field Trip
May 30, 9am-4pm
Sandstone Ranch Open Space
8309 S. County Highway 105, Larkspur, CO 80118
Join us as we explore the amazing Douglas County Open Space where we will be identifying native plants in varied vegetative zones. Register here.
Companion Planting
May 30,10am
Pea Patch CMG Demo Garden
2171 W. Shepperd Avenue, Littleton, CO
Join our Master Gardeners to discover how to use companion planting to naturally deter pests, improve soil health, and boost your garden’s overall productivity.
Landscaping with Native & Xeric Plants
May 30, 11:00am
Clayton Elementary Community Garden
475 W Union Ave, Englewood, CO 80110
Native and xeric plants are well adapted to our soils, climate, pests, diseases, and precipitation cycles. Join us in the Clayton Garden as CMG Kate Redford shares how she removed some turf and transformed her landscape using native and xeric plants.
June
Fermentation: Making Kombucha
June 3, 6pm-8pm
CSU Extension, Jefferson County Office
15200 West 6th Avenue #Suite C Golden, CO 80401
$25.00
Learn how to make your own kombucha in this hands-on workshop. Participants will explore the basics of kombucha brewing, its health benefits, and safe fermentation practices. No experience required—all materials provided. Register here.
Riparian 3-day NPM Course
June 6, June 13, June 20, 8am-12pm
South Platte Park and Carson Nature Center
3000 West Carson Drive, Littleton, CO 80120
A 3-day certification course that covers a mix of woody, grasses and forbes native plants with discussions for and on the impact of the continued introduction of non-native species, and more. Register here.
Plains Conservation Center 3-day NPM Course
June 6, June 13, June 20, 7:30am-12pm
Plains Conservation Center
21901 E Hampden Ave, Aurora, CO 80013
Experience the wide-open prairies of Colorado while learning about native and alien plants that live there. During three outdoor field sessions, learn common and scientific names, ecological relationships and human uses of 40-50 plants. Register here.
NPM 3-Day Course RidgeGate
June 9, June 16, June 23, 8am-12pm
Prairie Sky Park
9381 Crossington Way, Lone Tree, CO 80124
Join us along the Willow Creek Trail as we’ll see a mix of xeric and riparian plants in this acreage east of Bluffs Regional Park. We’ll learn a mix of trees, shrubs and herbaceous plants. Register here.
Fermentation: Making Kombucha
June 10, 6pm-8pm
CSU Extension, Arapahoe County Office
6934 S. Lima St, Suite B Centennial, CO 80112
$25.00
Learn how to make your own kombucha in this hands-on workshop. Participants will explore the basics of kombucha brewing, its health benefits, and safe fermentation practices. No experience required—all materials provided. Register here.
Pests, Diseases and Disorders
June 13, 10:00am
Pea Patch CMG Demo Garden
2171 W. Shepperd Avenue, Littleton, CO
Join us for an informal class in this City of Littleton Community garden to learn about the common landscape and vegetable pests, diseases and disorders and what options are available for control.
Common Weeds in your Garden
June 13, 10:00am-11:00am
Cheyenne Arapaho Park Community Garden
9200 E. Iowa Ave., Denver, CO80231
Weeds don’t stand a chance! Learn to identify and tackle the most common garden weeds with Arapahoe County Master Gardeners Jessie Asimus and Elaine Davis. Register here.
Garden Kids Club: The Good Bug Club: Pollinators and other Beneficial Insects
June 14, 10:00am-11:00am
Cheyenne Arapaho Park Community Garden
9200 E. Iowa Ave., Denver, CO80231
Not all bugs are bad — in fact, some are garden superheroes! Join Arapahoe County Master Gardeners Elaine Davis and Jessie Asimus as they introduce kids to the fascinating world of pollinators and beneficial insects working hard to keep our gardens healthy. Register here
3-Day NPM Course-Dawson Butte Open Space
June 16, June 18, June 25, 9:00am-1:00pm
Dawson Butte Ranch Open Space Trail
1753 Tomah Road, Castle Rock, CO 80109
This NPM course at Dawson Butte Open Space takes you through forests and meadows with spectacular views and amazing wildflowers and shrubs. Register here.
Fertilizing the Vegetable Garden
June 20, 9:30am-10:30am
Hudson Garden’s Veggie Demo Garden
6115 S Santa Fe Dr, Littleton, CO 80120
Fertilizing the vegetable garden will be the topic for this free, informal talk at Hudson Gardens Vegetable Demonstration Garden. When do you fertilize? What kind of fertilizer is best for the vegetable garden? How often should you fertilize? All these questions will be answered if you join us for this talk. Presented by Arapahoe County Extension Colorado Master Gardeners.
Growing Common Vegetables
June 20, 9:30am
Clayton Elementary Community Garden
475 W Union Ave, Englewood, CO 80110
You’ve planned your garden, prepped your soil, and picked out your seeds and seedlings—now what? How do you turn all that preparation into a thriving vegetable garden? Join us in the Clayton Garden as CMGs Kim Robinson and Becky Clemons share practical tips to help you grow with confidence.
Dealing with Drought
June 25, 4:00pm-5:00pm
Aurora Central Library
14949 E Alameda Pkwy, Aurora, CO 80012
With areas of Arapahoe County currently in severe to extreme drought, water will be precious this season! In this class, you will learn tips to keep your landscape healthy during extended drought and when water restrictions exist, along with cultural practices and drought tolerant plant choices to help conserve water.
July
What’s “Bugging” your Garden
July 18, 9:30am-10:30am
Hudson Gardens Demonstration Vegetable Garden
6115 S Santa Fe Dr, Littleton, CO 80120
Japanese Beetle season is upon us. Join us for a free, informal talk at Hudson Gardens Vegetable Demonstration Garden. We will discuss the life cycle of this pest and what are the best methods for control. There will also be discussion about the Emerald Ash Borer. Find out how and when to treat your Ash trees to keep your trees healthy.
Composting
July 19, 9:30am
Clayton Elementary Community Garden
475 W Union Ave, Englewood, CO 80110
What is composting, why does it matter, and how can you do it in your own garden? Join us in the Clayton Garden as CMG Carter Hill breaks it all down and shows you how to get started!
Lawn Care Tips
July 23, 4:00pm-5:00pm
Aurora Central Library
14949 E Alameda Pkwy, Aurora, CO 80012
In this class you will learn all the best practices to keep your lawn healthy and lush from proper mow height to regular aeration. Colorado appropriate grass species, weed management and common lawn pests and diseases will all be covered in this program.
August
Pollinators in the Garden
August 8, 10:00am
Pea Patch CMG Demo Garden
2171 W. Shepperd Avenue, Littleton, CO
Join us for a free Community class about Pollinators and what you can do to attract them to your yard by providing food, shelter and water.
Extending the Growing Season
August 15, 9:30-10:30am
Hudson Gardens Demonstration Vegetable Garden
6115 S Santa Fe Dr, Littleton, CO 80120
Join us at Hudson Gardens Vegetable Demonstration Garden to learn how you can extend your gardening season into the fall and winter. This free, informal talk will give you practical tips for growing vegetables, like beets, broccoli, carrots, and spinach to harvest in September or October.
Garden Kids Club: Dirt Detectives and Rot Squad
August 16, 10:00am-11:00am
Cheyenne Arapaho Park Community Garden
9200 E. Iowa Ave., Denver, CO 80232
Something amazing happens when you pile up kitchen scraps and garden waste — but what exactly is going on in there? Join Arapahoe County Master Gardeners Jessie Asimus and Elaine Davis as they lead kids on a decomposition investigation, uncovering the creatures that turn scraps into garden gold. Register here
Bees and Native Plants
August 27, 4:00pm-5:00pm
Aurora Central Library
14949 E Alameda Pkwy, Aurora, CO 80012
Colorado has over 1,000 species of bees and many have specialized relationships with our native plants. In this class you will learn about several bee species and their characteristics and how to attract them to your yard using native plants.
September
Fall Gardening and Putting your Garden to Bed
September 12, 10:00am-11:00am
Cheyenne Arapaho Park Community Garden
9200 E. Iowa Ave., Denver, CO 80232
Make the most of the season’s end! Join Arapahoe County Master Gardeners Elaine Davis and Jessie Asimus to learn what to plant in fall, how to prep your soil, and the right steps to put your garden to bed so it’s ready to thrive come spring. Register here
Fall Planted Bulbs
September 27, 4:00pm-5:00pm
Aurora Central Library
14949 E Alameda Pkwy, Aurora, CO 80012
It’s never too early to start thinking about next year’s garden! Learn how to make your yard a harbinger of spring with colorful blooms from bulbs! Join us for a look at fall planted bulbs, how to care for them and which will provide the best color for springtime blooms.
October
Fall and Winter Landscape Care
October 22, 4:00pm-5:00pm
Aurora Central Library
14949 E Alameda Pkwy, Aurora, CO 80012
This class will cover everything you need to know about putting your gardens to bed for the winter season. You will learn what to do from October – February to help your garden flourish through the dormant season, including pruning and watering guidelines.
November
Colorado State University Extension is an equal opportunity provider. | Colorado State University does not discriminate on the basis of disability and is committed to providing reasonable accommodations. | CSU’s Office of Engagement and Extension ensures meaningful access and equal opportunities to participate to individuals whose first language is not English.
Colorado State University Extension es un proveedor que ofrece igualdad de oportunidades. | Colorado State University no discrimina por motivos de discapacidad y se compromete a proporcionar adaptaciones razonables. | Office of Engagement and Extension de CSU garantiza acceso significativo e igualdad de oportunidades para participar a las personas quienes su primer idioma no es el inglés.
Col.st/ll0t3
