Friday, June 28 Sessions

Purple Flower


Ken Druse







Sun in trees


Bee Center

  • Pre-Conference Nature Heals Tool Kit Training (optional)
    10:00 A.M. - 12:00 p.m. MacMillan Auditorium

  • Pre-Conference Inspiration: Arboretum Gardens Self-Guided Tour (optional)
    10:00 A.M. - 12:00 p.m.

    Explore the Arboretum grounds and gardens
    Maps available at the registration table

  • Lunch on your own
    Visit the Arboretum Cafe for healthy and delicious options

  • Keynote Speaker Ken Druse
    1:45 p.m. MacMillan Auditorium

    Natural Companions: Inspiring combinations of plants that grow together and bloom at the very same time

    Award-winning garden writer and photographer Ken Druse presents recipes for perfect plant pairings using diverse species. This talk introduces heat- and cold-tolerant varieties that will thrive in North America. Organized by theme within topics including: seasons, color, fragrance, foliage, grasses, wetlands and ponds, edible flowers and much more.

    Along with the garden photos, the presentation features unique botanical images created in collaboration with artist Ellen Hoverkamp using modern digital technology. Cuttings of plants and flowers (often grown in Ken's Sussex County, NJ garden) were arranged on an oversized flatbed scanner. The results reveal the vivid characteristics of favorite plants with amazing color, depth and clarity. Gardeners will discover an inspirational guide -- presented in Ken's witty style and with stunning presentation techniques. *Book signing in Great Hall at 3:00-3:30.

    Afternoon Sessions
    3:30 - 4:20 p.m. SNYDER AUDITORIUM
    Embracing horticulture ecology: Gardening with insects!

    4:30 - 5:20 p.m. ARBORETUM GROUNDS
    Observing in nature with Alan Branhagen

    3:30 - 4:20 p.m. MACMILLAN B/D AUDITORIUM
    Difficult conversations: To treat or not to treat
    Gary Johnson

    4:30 - 5:20 p.m. MACMILLAN B/D AUDITORIUM
    Recent impacts on tree health from excessive precipitation and shorter winters
    Brian Schwingle, Minnesota DNR Forest Health Specialist

    3:30 - 5:30 p.m. MACMILLAN A/C AUDITORIUM
    2 Hour Workshop with Julie Weisenhorn

    Mixing & matching plants for impact

  • Farm at the Arboretum Sneak Peek Soiree
    6:00 P.M. - 7:30 p.m. Bee Center
    Brisket Buffet Dinner and Carrot Cake
    You are invited to be one of the first to see the innovative and groundbreaking progress of the Arboretum Educational Farm.

Saturday, June 29 Sessions


Michael Engel


Library image


Tree art






Mary Meyer

  • Keynote Speaker Dr. Michael Engel
    9:00 a.m. MacMillan Auditorium

    400 Million years on six legs: Evolution of the insects

    This keynote presentation is a series of vignettes which highlights how the fossil record can inform us of insect evolution. Join Dr. Engel as he shares his adventures of discovery and exploring the different kinds of fossils in our natural world waiting to tell us an important story of evolution and change. *Book signing in Great Hall at 11:00 a.m.-11:30 p.m.

    Afternoon Sessions

    11:30 - 12:20 p.m. SNYDER AUDITORIUM
    Conversations with Dr. Michael Engel

    12:30-1:25 LUNCH

    1:30 - 2:20 p.m. SNYDER AUDITORIUM
    Spiders in the garden
    Larry Weber

    2:30 - 3:20 p.m. SNYDER AUDITORIUM
    Spotted-wing drosophila management for small-scale fruit production and the home garden
    Matthew Gullickson

    3:30 - 4:20 p.m. SNYDER AUDITORIUM
    Photographing Insects in and around the Garden
    Bill Johnson

    11:30 - 12:20 p.m. MACMILLAN B/D AUDITORIUM
    Historic and future native tree species in Minnesota
    Lee Frelich

    12:30-1:25 LUNCH

    1:30 - 2:20 p.m. MACMILLAN B/D AUDITORIUM
    Shade tree garden tour: Overview of tree selection based on shade quality, growth rate, total height, pollinator appeal
    Jeff Johnson

  • 2:30 - 3:20 p.m. MACMILLAN B/D AUDITORIUM
    Developing Engaging Urban Forestry Curriculum for Kids
    Monica Randazzo

    3:30 - 4:20 p.m. MACMILLAN B/D AUDITORIUM
    Effect of climate change on forests using dendrochronology
    Dan Griffin

    11:30 - 12:20 p.m. MACMILLAN A/C AUDITORIUM
    Container gardening through the seasons
    Heidi Heiland

    12:30-1:25 LUNCH

    1:30 - 2:20 p.m. MACMILLAN A/C AUDITORIUM
    Pollinator gardening for beginners
    Julie Weisenhorn

    2:30 - 3:30 p.m. MACMILLAN A/C AUDITORIUM
    Growing soils: Saving the planet
    David Asbazs

    3:30 - 4:30 p.m. MACMILLAN A/C AUDITORIUM
    Top-notch newly introduced perennials
    Mike Heger




Bug Track

Tree Track

Garden Design Track

Confirmed Speakers

2019 Planning Team

Area Accommodations