Welcome to Denver Botanic Gardens' online registration and ticket purchasing site



Cancellation Policy: Cancellations more than one week prior to a class are subject to a 15% cancellation fee. Cancellations with less than one weeks notice are non-refundable; please consider your payment a donation to the Gardens.


2015 Tree Diversity Conference - Even. More. Tree. Types.

Even more trees are coming to Denver! Building on the success of the March 2014 Tree Diversity Conference, five different tree experts will be speaking at the Denver Botanic Gardens this coming March to present more ideas about underutilized tree species and cultivars. The time of losing many of our ash trees to the emerald ash borer will soon be upon us and the urgency of making wise replanting choices is greater than ever.


Our outstanding new program includes a professor of plant sciences and horticulture who hails from a very cold climate, an experienced Asian plant explorer and arboretum collections director, one of our country's foremost tree nursery propagators and two of the Front Range's best-known urban foresters. In addition to specific trees, we'll be hearing about some of the challenges climate change presents and about the role government can play in promoting more varied tree selection. Join us to further expand your menu of tree choices and together let's develop a more stable and secure urban forest!


2015 Lineup

Kathleen Alexander, Boulder, CO City Forester

Kris Bachtell, Collections Director, Morton Arboretum, Lisle, IL

Tim Buchanan, Ft. Collins, CO City Forester

Greg Morgenson, Woody Plant Research Specialist, North Dakota State University, Fargo, ND

Keith Warren, Plant Propagator, J. Frank Schmidt Nurseries, Boring, OR.



$75, includes all programming and lunch

Front Range Beginning Farmers Conference


The Denver Botanic Gardens, National Young Farmers Coalition, and Rocky Mountain Farmers Union present the second annual Front Range Beginning Farmers Conference!


When: Saturday, Feb. 21, 9:00 a.m. – 4:30 p.m., followed by social time from 4:30 - 6:00 p.m.


Where: Denver Botanic Gardens at Chatfield, a working farm at Wadsworth and C-470


Why: The average age of U.S. farmers today is 57. Two acres of farmland are lost every minute. Many young people dream of starting a farm, but lack access to land, capital, education, and training. So let’s do something about that!


What: A one-day conference featuring instructional workshops from regional experts, targeted towards small scale, sustainable farming. Topics include land access and financing, crop rotation and food safety, coop development, animal production, policy advocacy, and more. Time to share and connect over a locally sourced lunch and post-conference social hour.


Who: Those who are considering starting an urban, suburban, or rural farm, those who have already been growing for a couple of years, and those who want to learn more and support the burgeoning small farm movement on the Front Range.


How: Pre-registration is highly encouraged.

$52 general public, cost of lunch and social hour is included.


Schedule: Each block of time will have three breakout sessions options to attend. Check back for the final schedule in January.












New Gardener Boot Camp

Are you a blank slate when it comes to starting your very own garden? Worried about ending the growing season with a pile of dead plants and sad vegetables? Join us at Denver Botanic Gardens for a full day event, packed with answers to all those looming and mysterious gardening questions. Get started on the right foot this year with all of our best beginner’s classes, carefully designed to equip you with all the tools you’ll need to master that garden once and for all!


Classes include:


Garden Planning 101… where do I start?

This beginner’s class will take you step by step through the process of laying out a plan of attack for your garden! Whether you are starting with a blank slate garden or working with an old outdated garden this class will give you the basics on where to start. It will discuss needs and planning tools for raised beds, container gardens and in-ground vegetable gardens. We will discuss the basics of garden locations, sun requirements, water needs, starting from seed, transplanting and the basics of planning the organization of perennials and annuals, trees and shrubs. This class is the perfect fit for anyone needing to understand how the garden works together as a whole.

Instructor Patti O’Neal

Patti O’Neal has been an instructor at Denver Botanic Gardens for 9 years, specializing in kitchen gardens A-Z, seed starting, preparing the beds, intensive growing, pests and diseases and extending the seasons to a successful harvest. She is a horticulturist in CSU Extension office in Jefferson County.



Soils 101

Soils will always be the first place to start when building a beautiful garden. This class will cover the best management practices for building your soil for in-ground beds, containers and raised beds. It will discuss the basics of composting as well as demonstrate the value of soil testing.



Beginning Vegetable Gardening

If you have never planted edible plants or had little success at growing your own vegetables, Betty will take you through the ABCs from planning, soil preparation, plant choices, watering, fertilizing and harvesting your first vegetable garden. Betty will include the most popular vegetables to grow, including lettuce, spinach, peas, tomatoes, peppers, green beans and more. You'll take home a comprehensive planting guide that will help you through the entire growing season and garden seeds to start planting in early spring.




Annuals and Perennials for Color in the Garden

The variety of annuals and perennials is limitless as are the ways to use them in your garden rock gardens, pocket gardens, cottage gardens and vegetable gardens. In this class you will learn the differences between annuals, perennials and biennials, as well as when it is best to use each of them. We will put emphasis on how to choose the best plant options for sprucing up your current garden beds as well as all the things to consider when planning a new garden bed. Well talk about natives and Plant Select options, along with herbs and other edibles and how to incorporate them into your landscape. Well send you on your way with some great ideas and all the ideas you need for success in the coming flower gardening season!

Instructor Donna Duffy

Donna Duffy has been a Master Gardener in Jefferson County since 2009, and became a Native Plant Master a couple of years later. As a Colorado native, Donna has experienced gardening through hail, drought, microbursts, floods, early snow…everything that Colorado weather can throw at us. As a result, Donna’s gardening interests have evolved to using and experimenting with native plants, Plant Select, and other waterwise plants and shrubs. Donna has been a professional trainer for over 25 years in the non-profit sector.


These classes combined usually cost more then $200 but with New Gardener Boot Camp event will be $60 members, $80 non-members. Register Early as space is limited.






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