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2019 6th Annual Tree Diversity Conference

 

To protect our urban forests, which are threatened by pests and pathogens, a greater variety of tree species is necessary.

 

For our sixth annual conference we will continue to explore the relationships between landscape design, horticultural practices and the use of a greater variety of tree species.

 

Between them, our speakers this year boast an extravagant depth of experience ranging from worldwide plant exploration to landscape and garden design, promotion of new plant materials, administration of some of our country's most noted horticultural conferences and institutions and hands-on experience with plant testing and data collection.

 

Public $80, includes all programming and lunch

$70 Promo, includes all programming and lunch

*Promotional price available to all Members of Colorado Tree Coalition

 

Symposium will be held at Denver Botanic Gardens in Mitchell Hall.

 

Speaker Lineup

 

The History of America's Urban Forests

Dr. Jill Jonnes

Dr. Jonnes surveys the long sweep of arboreal history in our cities and towns dating back to our nation's founding and continuing to our present-day foresters and researchers who are advocating for the importance of trees as our most important green infrastructure.

 

Jill Jonnes earned her doctorate in American History at Johns Hopkins University. She was the founder of the non-profit Baltimore Tree Trust and most recently is the author of "Urban Forests: A Natural History of Trees and People in the American Cityscape."

 

 

Tree Research on the Great Plains

Dr. Jason Griffin

Dr. Griffin discusses developments at the John C. Pair Horticultural Center in Wichita, Kansas, focusing on the testing of new woody plants in a climate not unlike that of our Rocky Mountain Front Range. He also speaks about the legacy of Dr. John C. Pair and the notable horticultural advances he carried out at the research center later named for him.

 

Jason Griffin has been the Director of the John C. Pair Horticultural Center, a unit of Kansas State University in Haysville, Kansas since he completed his doctoral studies in Horticultural Science and Plant Physiology at North Carolina State University in 2002.

 

 

Updates on Regional Species Diversity Augmentation

Kathleen Alexander and Michael Swanson

Urban forestry professionals from Denver and Boulder describe the status of tree species diversification in their communities, with emphasis on innovative species selection during the past five years and how those plants have thus far adapted to our challenging environment.

 

Kathleen Alexander has been with Boulder Forestry for 21 years, the last 10 as City Forester. She received her B.S. in Forest Biology and M.S. in Forest Management from Colorado State University and has been active in the ISA Rocky Mountain Chapter.

 

Michael Swanson has been with Denver Forestry for 18 years, the last 13 as Forestry Superintendent. Mike is an ISA-certified arborist and has volunteered extensively with the Colorado Tree Coalition and the ISA Rocky Mountain Chapter.

 

 

 

Exploring Trees of the Arid Southwest

Adam Black

Adam Black is the Horticultural Director of Peckerwood Gardens in Hempstead, Texas. Peckerwood Garden is a collection of more than 3,000 plants including many rarities; it is a conservation garden containing examples of numerous threatened species, many of which are no longer found in the wild. Previously he was the manager of the forest pathology and entomology laboratories at the University of Florida in Gainesville, FL.

 

Adam is a plant explorer who has sought out outstanding forms of native American trees in the Southwest, many of which have great potential to grow in Colorado.

 

Battling the Japanese Beetle

Rocky Mountain Gardening Elective

The Japanese beetle – found in many Front Range areas -- is moving to new communities. This unwelcome beetle is concerning home owners with serious damage to plants. Instructor Betty Cahill takes the class through the management options for the Japanese beetle during its adult and larval stages. She provides tips on how to protect your favorite plants, including a plant list that Japanese beetles prefer and mostly avoid.

Instructor: Betty Cahill

Price: $31, $26 member

Cafe Botanique

Café Botanique is a part of the Botanical Art and Illustration Certificate Program and is open to Botanical Art and Illustration students, Gardens' members, the general public, academia and artists. The 30-40 minute talk starts at 6:30 p.m. and is followed by a discussion. This lecture offers one elective credit hour in the BI-program. Fee: $5.

 

 

Conifers for Colorado Landscapes & Gardens

Rocky Mountain Gardening Required Course Group II

Urban tree diversity is becoming ever more critical in our local and regional landscapes which have relied on a limited tree palette. Did you know there are dozens of lesser-known yet proven species of conifers that deserve more consideration? Conifers offer year-round interest yet require little care once established. How do you choose from the wide array offered at local nurseries? This class introduces you to the diverse world of hardy conifers and reveals the secrets to their success in our local climate. From native species to exotic cultivars, we’ll discuss practical, cultural and design considerations. A morning classroom session will be followed by a walking tour and hands-on introduction to the Gardens' conifer collections. We’ll take a half hour break for lunch on your own (bring your own or eat at the Gardens’ café). Please come dressed for the weather. Landscape and nursery professionals are especially invited.

 

This class qualifies as continuing education for the Colorado Certified Nursery Professional recertification. More details here: http://coloradonga.org/certification.php

 

This class also qualifies for continuing education credits for the ISA-RMC.” (Use this link: http://www.isarmc.org/.)

 

6 reasons to take this class:

1. Increase urban tree diversity: Discover a new world of hardy and resilient evergreens beyond the usual that are especially suited to our local climate.

2. Year-round interest: Add elegance, texture and structure to your fall, winter and early spring landscapes

3. Habitat enhancement: Learn new ways to provide shelter and nesting areas for songbirds and other wildlife.

4. Multi-modal learning: The classroom segment uses hands-on discovery along with stunning images, followed by a walk through the Gardens’ collections to tie together the day’s discussions.

5. Inside tips from the pros: Understand how to successfully select, plant and care for these low-maintenance plants from > 25 years professional experiences.

6. No better time: Spring is the best time to acquire and plant conifers. When this class is over, you’ll be armed with knowledge, and inspired to take your garden or landscape to new and exciting levels.

 

Instructor: Pat Hayward, former Executive Director of Plant Select and currently operating Phytologic Horticultural Services, a consulting and garden coaching business.

Price: $105, $95 members

Explore Mount Goliath's Weathered Beauty

We’ll continue documenting the wildflowers on Mount Goliath for future interpretational material. Mount Goliath is North America’s highest constructed rock alpine garden, with some 250 species of alpine and subalpine wildflowers and a grove of 1,600-year-old-plus bristlecone pines. You’ll start with a garden specialist, and you’ll have the opportunity to become familiar with the blooming wildflowers before selecting and sketching your specimen. The following week, we’ll return to the site and do some more documentation prior to our work in the classroom. You’ll choose your medium and work toward a future interpretational guide for the site.

 

Prerequisites: Botanical Illustration in Pen and Ink I, Botanical Illustration in Colored Pencil I or Botanical Illustration in Watercolor I.

Fee: $310 member, $370 non-member.

 

Date(s):

Wed, June 19, 9 a.m. – noon (Denver Botanic Gardens), June 26, July 3, 10 a.m. – 1 p.m. (Mount Goliath Nature Center), July 10, 17, 24, 9 a.m. – noon (Denver Botanic Gardens)

Instructor: Randy Raak

 

Intro to Beekeeping

 

If you’re thinking about starting a beehive or are just curious about what’s involved with keeping bees, then this is a great introductory class for you. Tracy will teach you how honeybees live, discuss different hive designs, tell you how to get started as a beekeeper, and give you an idea of the beekeepers year. A handout will be provided with a list of suggested reading, supportive resources, including local beekeeping groups.

 

Instructor: Tracy Bellehumeur has been raising bees for 9 years using natural methods in Langstroth and top bar hives in the mountains west of Boulder. She is an advocate and educator for helping all bees, native and honey bees, and works with the City of Boulder to help organize Pollinator Appreciation Month. She is also the beekeeping instructor for Growing Gardens in Boulder and teaches for the Boulder County Beekeepers Association, specializing in honeybee pests and diseases. More information can be found at BeeChicas.com.

Price: $41, $36 member

Making Great Compost: Hot, Cold and More

While our ancestors realized that compost was helpful for growing plants and improving soil health, they did not know how or why it works. They inherently knew that the single best thing you can do for your soil is to create your own plant based compost. This class will teach you the science of composting based on 50 years of research – relatively recent compared to the 2000 plus years that humans have been composting.

Come learn about the various microorganisms that do the bulk of the work making good compost, the materials and proportions you need to make it the best possible, and the three main ways to create great compost; cold compost, hot compost and vermicompost.

 

Instructor: Patti O'Neal

Price: $41, $36 members

Never Fail Perennials

Rocky Mountain Gardening Required Course Group II

Learn to choose and plant a wide variety of easy-to-grow plants for years of low-maintenance enjoyment.

Shalene will demonstrate how to plan your perennial garden for a continuous succession of bloom. The final class will be a walk in the Gardens to view examples of perennials discussed in class, as well as a time for additional questions and discussion.

 

Instructor: Shalene Hiller

Price: $145, $122 members

Rocky Mountain Horticulture I: Gardening Principles

Rocky Mountain Gardening Required Course Group I

This class details all the specifics necessary to grow plants successfully in the Rocky Mountain region. Soil preparation, plant choice and location, planting techniques and year-round maintenance specific to Colorado will be covered. We'll review plant growth, fertilizers, microclimates and more.

Price: $161, $135 members

Instructor: Thaddeus Gourd attended New Mexico State University where he graduated with a B.S. degree in Pest Management and Horticulture. He earned a Master’s Degree with thesis study in Entomology at New Mexico State University and a Ph.D. in Plant Pathology with emphasis on plant parasitic nematodes at North Carolina State University. Thaddeus has worked over 19 years in the private sector of the plant science business and since 2000, has worked at Colorado State University Extension as an Agriculture Agent and Director for Adams County. He has extensive experience of gardening and greenhouse management and has been involved in the practice of Integrated Pest Management for over 30 years.

Special Instructions: All students are requested to bring graph paper and pencils to the first class

Photo courtesy of: Soil Science (flickr)

Rocky Mountain Horticulture II

Rocky Mountain Gardening Required Course Group I

Rocky Mountain Horticulture II is an introduction to general information on plant management. Each of these four classes will present an overview by an expert from the Colorado State University Cooperative Extension Service. Topics include the identification and control of lawn and garden weeds, diseases and insects, and integrated pest management.

 

Instructor: Thaddeus Gourd attended New Mexico State University where he graduated with a B.S. degree in Pest Management and Horticulture. He earned a Master's Degree with thesis study in Entomology at New Mexico State University and a Ph.D. in Plant Pathology with emphasis on plant parasitic nematodes at North Carolina State University. Thaddeus has worked over 19 years in the private sector of the plant science business and since 2000, has worked at Colorado State University Extension as an Agriculture Agent and Director for Adams County. He has extensive experience of gardening and greenhouse management and has been involved in the practice of Integrated Pest Management for over 30 years.

Price: $161, $135 members

Special instructions: Instructor will provide material and specimens for the participants to examine during this 4 session course.  The class is also encouraged to bring in specimens that can be used for class diagnostics. 

Seven Principles of Water-Smart Gardening

Rocky Mountain Gardening Required Course Group I

Gardening remains high and dry in the Rocky Mountain region! Water-Smart Gardening is an environmentally friendly way to create a beautiful home landscape that will thrive under low water conditions. Join this class to learn the principles of Water-Smart Gardening and some of the many plants that you can incorporate into your yard.

 

Instructor: David Winger

Price: $62, $55 members

Starting Your Garden from Seed

Rocky Mountain Gardening Elective

Few things excite a gardener more than buying new plants for their gardens, especially if the plants are exotics, unusual or heirlooms. Second-only to the creation of new plants is the financial benefit of growing your own plants, whether flowers, herbs or vegetables.

This class will demystify the seed-starting process primarily focused to the novice gardener, but a good review of the best success tips if a more advanced gardener needs a refresher. Learn simple seed botany and the process of best practices for successful seed germination, successful transplanting, and seed collection and storage and cover some of the reasons seeds and seedlings fail.

After discussion, participants will get a hands-on demonstration and students will leave with seed trays and seeds to return home and practice what you have learned in class. This class will help you up your game to produce all the transplants you could possibly need and set you up for upcoming classes on spring and summer vegetable gardening and succession planting.

 

Instructor: Patti O'Neal

Price: $37, $32 members, includes $5 for materials.

Special Instructions: Each participant will get a seed tray for seed starting, with all necessary materials to get your garden going this year!

Image Courtesy of: photofarmer (flickr)

Troubleshooting in the Vegetable Garden: If A Tomato Could Talk

Rocky Mountain Gardening Elective

If your vegetables could talk, they would tell you exactly how to care for them properly to prevent disease or insect invasion. The next best thing is for you to participate in this class and learn what insects and diseases attack your vegetable gardens and containers and what you can do about it.

Learn about organic and inorganic management strategies, how they work and how to correctly apply them. This class stresses integrated pest management, a concept that uses the least invasive methods of pest control first to keep food safe and delicious.

 

Instructor: Patti O'Neal

Price: $31, $26 members

Vines and Groundcovers

 

 

 

 

What Made My Good Plant Go Bad?

Rocky Mountain Gardening Elective

Did the glorious beauty promised by the garden catalog, nursery salesperson or garden designer fall flat? You may be surprised that insects and diseases are NOT the main cause of problems in the garden. Gardeners have more control than they may think over many plant problems. As much as we do not like to think it, humans cause most of the issues in the garden; many of which result in an insect or disease problem as a secondary issue   NOT the first.  This provides an overview of the most common plant challenges and what you can do to prevent their annual recurrence. The course focuses on the root causes that eventually attracts pests and disease to your garden and what to do about it.

 

Price: $44, $39 members

Instructor: Patti O'Neal

 

Special Instructions: This class is a lecture and hands on lab. You may bring a sample of a plant or turf you want diagnosed to class. Registration confirmation includes info on how to collect a good sample.

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