Trending Horticulture 2019
Advancing the Art & Science of Your Gardens

Thursday, July 18, 9 a.m. - 3:30 p.m.
Minnesota Landscape Arboretum, Chaska MN

Register$99 member (MSHS or Arb)/$119 non-member
includes choice of sessions, morning coffee/snack, lunch & Arboretum admission

About Trending Horticulture            

Session Details, Descriptions, Times

  Kathy Allen
Librarian, Andersen Horticultural Library
Kathy Allen has been head of the University of Minnesota's Andersen Horticultural Library since 2008. She is a past president of the Council on Botanical & Horticultural Libraries and is coordinator of Plant Information Online < >. Kathy also served as U of M plant sciences librarian and as agriculture librarian in Malawi (southern Africa).
Reba Berge
Owner, A Precious Petals Florist
Reba is the owner of A Precious Petals Florist, located in West St. Paul, MN. She has a passion for the floral community, and loves to dedicate her time and energy to learning, teaching, and sharing. She began her floral career in North Dakota as a ride-along delivery assistant at the young age of 15 and has since become an entrepreneur and floral designer with an eagerness to develop new talents at every opportunity. She studied and honed her design skills through classes at Koehler & Dramm's Institute of Floristry, and has taught design for Wright County Spring Days, design classes at the Minnesota Arboretum, design classes for MAAE (Minnesota Association of Agricultural Educators), TriDistirict Community Classes, Washington County Horticulture Society classes, and many more. She is also a member of the Dakota County Chamber of Commerce. When Reba is not teaching or designing, she enjoys spending time with her family and friends. She also enjoys camping, reading, and cooking!
Alan Branhagen
Arboretum Director of Operations and published horticulture author
Alan Branhagen is Director of Operations at the Minnesota Landscape Arboretum, and previously held the position of Director of Horticulture at Powell Gardens, Kansas City's botanical garden. He is the author of The Gardener's Butterfly Book and has written articles for publications including Fine Gardening, Missouri Gardener, Missouri Prairie Journal, Landscape Maintenance, and Restoration and Management Notes. Alan is a naturalist and plantsman specializing in botany, butterflies, and birds, utilizing his background in garden design and management. He is currently creating and restoring a three-acre prairie and woodland garden around his home. Author of Native Plants of the Midwest: A Comprehensive Guide to the Best 500 Species for the Garden
Daniel Halsey
Daniel Halsey is a certified permaculture and professional agro-ecosystems designer. Daniel has a Bachelor of Science degree in Temperate Climate Polyculture Design and a Masters of Professional Studies in Horticulture from the University of Minnesota. He is hired nationally and internationally to design private homesteads, intentional communities, and broad-acre transition. He teaches in Haiti, Lebanon (Beirut), Costa Rica, The Netherlands, Spain, Canada, across the United States, and the United Kingdom. Dan is managing director of Permaculture Research Institute/USA and principal partner of Natural Capital, LLC, an ecological designer's plant database with over 5000 users in 70 countries.
Rich Harrison
Registered Landscape Architect and Director of Landscape Design
Rich Harrison is a Registered Landscape Architect with an MLA degree from the University of Minnesota. His work focuses on sustainable design, place making, and community development. Rich has worked on water quality issues for 21 years, beginning in research at Mankato State University, working for the Met Council studying Non-Point Source Pollution, and Research at the U of M focusing on Transit Oriented Development and Organic Infrastructure. Rich realizes that on-site treatment of stormwater is the best way to prevent pollution and preserve our precious water resources and has since focused his career in design. Rich believes that education and facilitating the understanding of how our actions impact our natural environment is critical to successful design and the acceptance of nature in our built environments.
Rhonda Fleming Hayes
Garden columnist and book author
Rhonda Fleming Hayes is a gardening columnist and photographer. She is the author of Pollinator Friendly Gardening: Gardening for Bees, Butterflies and Other Pollinators. Rhonda pens columns for Northern Gardener and the Star Tribune, and has written stories for Southern Living, Midwest Living and other publications. She is a lifelong gardener who loves to share her passion for plants with others and has been an Extension Master Gardener since 2000. Depending upon the time of year she enjoys walking the city lakes in Minneapolis or the beach in Florida.
Drew Horton
University of Minnesota Enology Specialist at the Horticulture Research Center
Drew Horton is the Enology Specialist for the U of Minnesota's Grape Breeding & Enology Project. For many years the project has been developing new varietals of wine grapes in support of the emerging MN wine industry. In his role as Enology Specialist Drew spends half the year producing, analyzing and bottling some 100 micro-batches of grape wines and apple ciders. The rest of the year Drew works in support of the greater Midwest wine and grape industry as an adviser and wine specialist presenter at conferences, meetings and in teaching classes and short-courses.With a degree in Anthropology and some 20 years of experience as a wine sales person, winemaker and wine educator, Drew's natural enthusiasm and knowledge about wine and wine-making are a great asset to U of MN grape research and the greater industry.

Michelle Mero Riedel
Master Gardener, Photographer, Writer, Instructor
Michelle Mero Riedel is a 20+ year Master gardener in Washington County. She owns Riedel Photography ( specializing in portraits and plants. She holds a BA in speech communications, and is a regular contributor to Northern Gardener magazine writing and photographing articles. She teaches many gardening subjects to local garden clubs, and "Photography in Your Garden" is her favorite subject. Michelle gardens a ½ acre lot, which is also a photo studio in the warm weather months. Her gardens are available for tours.

Theresa Mieseler
Herb Grower and Consultant, Shady Acres Herb Farm
Theresa and Jim founded and managed Shady Acres Herb Farm for 39 years. The greenhouse part of the business is closed but Theresa continues to teach and is involved nationally with herb associations and education.Theresa is the recipient of the Herb Society of America, Nancy Putnam Howard Award for Excellence in Horticulture, 2010. She was employed by the Minnesota Landscape Arboretum from 1969 - 1991.
Peter Moe
Director of the Minnesota Landscape Arboretum
Peter Moe is Director of the University of Minnesota Landscape Arboretum in Chanhassen, Minnesota. Peter has been directly involved in the world class, fruit and landscape plant breeding programs at the Arboretum as well as the planning, fund raising, construction and operation of new gardens, ecological restorations, model landscapes, buildings and facilities at the Arboretum since 1973. Peter has been Landscape Maintenance Supervisor and Director of Operations and Research prior to becoming the Director. Peter started a formal program in Plant Conservation in 2013. Peter has a B.S. in Horticulture and a Masters of Agriculture from the University of Minnesota College of Food, Agriculture and Natural Resource Sciences. Peter and his wife, Susan, live in Chanhassen, MN and have 3 grown children . Peter and Susan enjoy growing vegetables, fruits, azaleas and diverse trees.
Kaitlyn O'Connor
Education and Outreach Specialist at Prairie Moon Nursery
Kaitlyn O'Connor is the Education and Outreach Specialist at Prairie Moon Nursery in Winona, Minnesota, which provides over 700 species of native plants for gardening and restoration. She also works with the Winona State University Arboretum to develop landscape plantings on campus, showcasing plants native to the Driftless Region. Recently, she appeared in the award-winning documentary "Decoding the Driftless" to highlight the region's most endangered ecosystem, the goat prairie. Kaitlyn homesteads at Wiscoy Valley Land Co-op where she spends her free time gardening, cooking, and tending to a small flock of backyard chickens.
David Remucal
Curator of endangered plants at the Minnesota Landscape Arboretum
David Remucal, Ph.D. is Curator of Endangered Plants at the University of Minnesota Landscape Arboretum where he manages the Plant Conservation Program. His research interests include rare plant and native orchid propagation, seed storage, and restoration / translocation. An ecologist/evolutionary biologist by training, having done graduate work at the University of Colorado, David has become consumed by the interesting biology of orchids with the young Native Orchid Conservation Program. He once had lots of outside interests but with two young children, now he's just trying to keep up. You can find out more about the rare plant and orchid work at
Mary Shier
Editor of Northern Gardener Magazine 
Mary Lahr Schier is a Minnesota gardener, writer and editor and author of The Northern Gardener, From Apples to Zinnias, 150 Years of Garden Wisdom (Minnesota Historical Society Press, 2017), winner of a Silver Award of Merit from GWA: The Association of Garden Communicators. She is also editor of Northern Gardener magazine, the publication of the Minnesota State Horticulture Society and Minnesota's only homegrown garden magazine. Mary gardens in St. Paul, where she is trying to cram as many plants as possible into an urban lot.
Amanda Weise
Plant Conservation Associate, Minnesota Landscape Arboretum
Since I was a child, I have been interested in nature and one of my favorite gifts from my parents was a small plant press. My interest has led me to study biology, botany, and ecology and pursue a career that allows me to be outdoors. I developed a passion for plant conservation and public service while working as a botany technician on the White Mountain National Forest. The Forest Service mission of conserving public resources for future generations continues to inspire and motivate my work to this day. 
- M.S. Natural Resources: Environmental Conservation (University of New Hampshire)
- B.A Biology/Ecology (Western Connecticut State University)
Work Experience:
1. Rare Plant Seed Collector (Contract), New England Wild Flower Society - survey and seed collection for rare plant species throughout southern New England for conservation seed banking efforts.
2. Botanist, Oxbow Associates - mitigation and restoration for populations of St. Andrew's-cross (Hypericum stragulum), northern blazing star (Liatris novae-angliae) and coastal plain blue-eyed-grass (Sisyrinchium fuscatum)
3. Ecological Programs Coordinator, New England Wild Flower Society - revegetation of Cadillac Mountain, Acadia National Park; wild rice (Zizania palustris & Zizania aquatica) surveys and reintroduction in Massachusetts.
Tim Wilson
Horticulture Education Manager, Red Barn Farm at the Arboretum
Tim Wilson is a farmer and biologist from Illinois who has worked with different urban and rural communities to expand community agriculture enterprises and train new farmers. Tim has a Bachelor's degree in Agroecology from Sterling College in Vermont, and did his graduate work examining the effect of nutrition on plant disease at the University of Wisconsin at Madison. Tim has managed profitable vegetable production and community gardens in Chicago on city property since 2003. He built and moved gardens for free leases and water on abandoned lots as the Director of the Resource Center's City Farm for five years. He also trained and employed full time over 250 youth and adults to sell their city-grown produce to restaurants, wholesalers, and institutions, as well as at sliding scale farm stands, food shelves, and a Veggie Rx program. Tim taught the sustainability courses at Kendall College School of Culinary Arts and City Colleges of Chicago, and enjoys working with forestry and farming projects throughout the country.

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Arboretum Members may invite non-members to attend a class with them at the discounted member rate! Simply register for all participants at the same time in the same order and select the "member" rate for each person at checkout.

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The best chance of being enrolled in a sold out class is to add your name to the waitlist. Click the orange "waitlist" button and complete the steps, or call 612-301-1210. There is no obligation to register if a spot opens. If the waitlist shows enough demand, additional class sessions may be added.

Program Quick Links

          PlantMaker Studio
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Garden Fun Stops
1-Hour Tram Tour
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Gardening & Horticulture Classes
FEATURED Trending Horticulture Day 2019
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