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Chadwick Arboretum & Learning Gardens

College of Food, Agricultural, and Environmental Sciences


Past Events


Virtual Arbor Day Celebration Awards Ceremony

Friday, April 30, 2021, 10:00 a.m. - 11:00 a.m.

Celebrate Arbor Day 2021 with us during our annual Arbor Day Awards Ceremony! Since 1984, Chadwick Arboretum has hosted the annual Arbor Day observances at Ohio State University. The OSU Arbor Day celebration features the dedication of newly planted trees, award presentations including the Lorax Award given to those individuals who "speak for the trees," and serves as a time to renew OSU's commitment to the Tree Campus USA Certification. 

Read all about those who "Speak for the Trees"  here in our program. 

Then, join us in celebrating by watching the recording of our Arbor Day Celebration - available now on our YouTube Channel.

Lorax Award Recipients




Tree University:  Akiva Silver's Trees of Power

Thursday, April 29, 2021, 6:00 p.m. - 7:00 p.m.

During this 1-hour webinar, we listened to Akiva Silver, author of the 2019 book, Trees of Power. Akiva spoke about his book and shared some information he's learned about growing chestnut trees.

 Watch the recording here 

Trees of Power explains how we can work with 10 arboreal allies, specifically focusing on propagation, planting, and individual species. Akiva is an enthusiastic tree grower with years of experience running his own commercial nursery. In this book he clearly explains the most important concepts necessary for success with perennial woody plants. 

  Visit our Events Calendar for more information on upcoming Tree University webinars occuring every month throughout the year!

Akiva Silver

Tree University: Growing and Enjoying Lilacs with Mark DeBard

April 22, 2021, 6:00 p.m. - 7:00 p.m.

It’s lilac season! Watch the recording of Chadwick Arboretum and Master Gardener Volunteer Mark DeBard during his 1-hour presentation on growing and caring for lilacs in your home garden. 

Mark Debard grew up in the Dayton area, practiced emergency medicine for 40 years in which the last 15 years were here in Columbus. He has been retired almost 5 years and has spent all of that time in lilac horticulture as well as becoming a Master Gardener Volunteer. Mark is on the Board of Directors of the International Lilac Society and is the Registrar for the International Register & Checklist of Cultivar Names in the Genus Syringa and will be publishing a book in March in conjunction with the ILS consisting of the entire Lilac Register of thousands of entries. Fun fact - Mark also has the largest collection of cultivars in Ohio (exceeding Holden Arboretum) with 150 different cultivars in-ground and 75 more in pots! You won't want to miss this presentation that will be both informative and a treat for the eyes. 

 Mark Debard

Tree University: Dwarf Conifers in the Home Landscape Virtual Series

Watch the recording here. 

Chadwick Arboretum Volunteer, Joe Stewart, led us in this 1-hour Zoom conversation about Dwarf Conifers for the Home Landscape! 

 Joe's first garden was in 1970  - six tomato plants at his OSU campus area apartment. His enjoyment of plants has grown through the years, and in 2000, Joe purchased his first conifer. His love for conifers exploded over the next nine years and he and his wife now have about 170 different species of conifers and assorted other plants over a 1/3 of an acre lot! 
  In this 45 minute presentation and 15 minute Q&A, Joe spoke about the different varieties that he has had luck with, how to maintain them, and why you need 170 in your lot, too. 

  Visit our Events Calendar for more information on upcoming Tree University webinars occuring every month throughout the year!

Deer in Conifers

Welcome Spring! Authors Speaker Series

Watch the recordings here. 

Welcome Spring

The Day of Education 2021 

 While the Day of Education series for 2021 is now completed, you can access some of the speakers' Powerpoints and other interesting information here! 

 Amy Stone, Top Ten Insects: Friends or Foes?

February 27: Pamela Bennett, Low Maintenance Top Ten Performing Annuals

 Day of Education Flyer


The Living Landscape Speaker Series

Need inspiration to make it through the winter? Watch the recordings from the Living Landscape Speaker Series, a series of four webinars designed to inspure us all to think about our personal gardens and  landscapes as "living" and dynamic - and a part of the answer towards building healthier ecosystems everywhere. 

 - January 15th, 2021, 10:00 a.m.:  Doug Tallamy: Restoring Nature’s Relationships at Home
   (Find Recording Here)

 - January 22, 2021, 1:00 p.m.  Marne Titchenell: Enhancing Your Landscape for Birds and Other Wildlife
   (Find Recording Here)

 - January 29, 2021, 10:00 a.m.  Deb Knapke: Eco-Conscious Gardening: From Concept to Design 
   (Find Recording Here)

Febryary 6, 2021, 10:00 a.m.  Rick Darke: Dynamic Design and The Art of Obversation 
   (Live event, no recording available)

Find detailed program descriptions and event website here.

Speaker Series

Chadwick Arboretum's Virtual Winter Solstice

DATE:          Monday, December 21, 2020
TIME:           7:00 p.m. – 8:00 p.m.

watch the recording here.

When Wanderers Meet: The Great Jupiter-Saturn Connection
Jennifer Johnson
Associate Professor of Astronomy

Occasionally, the planets do align. On December 21, 2020, the orbits of Jupiter and Saturn will bring them close together in the constellation of Capricorn, their closest approach in our sky since 1623.  Jennifer will talk about the motions of the planets in our solar system, how we see them on the Earth, and why we sometimes get lucky enough to have two beautiful planets together.

Labyrinths, Solstices, and Phenology, Oh My!
Jim Chatfield, Associate Professor and Extension Specialist, Horticulture
 Dan Herms PhD,  Former Professor and Department of Entomology Chair; currently the Vice President of Research and Development for The Davey Tree Expert Company.

From Chartres to Chadwick, from Equinox to Solstice, to the phenological link of biology and environment, the “everlasting vision of the ever-changing view” is of great import to lovers of plants and the nurture and enjoyment of nature. Let’s chat! This won’t be complete without an appearance of Dan Herms speaking to the Phenology and Solstice Pavilion at Chadwick’s Secrest sisteretum at OSU-Wooster.




  1. Oct 24, 2021, 1:00pm - 4:00pm

    Have you ever visited Arboretum North? Chadwick Arboretum’s largest garden site includes a lake, picnic area, 1000 native trees, a “net zero” tiny house, and more.Join us for a tour of the area highlighting these features and showcasing the edible plants around us. Also:  Local apple cider warmed over a fire. Arboretum-grown seedling trees will also be sold for $10.00 each. (Cash/check) Children's scavenger hunt. Bring your camera!

  2. Oct 22, 2021, 1:00pm - 4:00pm

    Arboblitz 2021: Help plant trees for generations to enjoy at OSU's Mirror Lake Hollow

  3. Oct 21, 2021, 6:00pm - 7:00pm

    Tree University: Investing in Trees for Health, Safety, and Equity  Creating Columbus’ First Urban Forestry Master Plan

  4. Oct 6, 2021 through Oct 7, 2021, 6:30pm - 8:00pm

    This two-day workshop will teach you the basics of how to mix, mold, and create your own HyperTufa container! 

  5. Sep 30, 2021, 5:30pm - 7:30pm

    Volunteer Appreciation Night “Alone we can do so little; together we can do so much.” Helen Keller Please join us at the Lane Ave. Gardens for an evening outdoors celebrating you and the accomplishments you’ve made possible!   DATE:          Friday, September 24, 2021 TIME:           5:30 p.m. – 7:30 p.m. RSVP :  

  6. Sep 29, 2021, 1:00pm - 2:00pm

    Enjoy a 1-hour tour of the Lane Ave. Gardens as we learn about many different varieties and species of maple trees! 

  7. Sep 23, 2021, 6:00pm - 7:00pm

    Join us for this 1-hour webinar with Dr. G. Matt Davies, Associate Professor on Soil and Plant Community Restoration at OSU. Dr. Davies will speak about his research on Pawpaw trees - and using them to tackle issues of declining forest health.

  8. Sep 23, 2021, 11:00am - 12:00pm

    Interested in learning about edible plants that can be found around the Central Ohio region? Attend a Foraging for Edible Plants Walk!

  9. Sep 10, 2021, 4:00pm - 6:00pm

    Get to know your closest public garden! Students, Staff, and Faculty, friends and family at The Ohio State University are all welcomed to attend. 

  10. Aug 26, 2021, 6:00pm - 7:00pm

    Central Ohio municipal tree care programs manage public trees, but what can volunteers, students, and Master Gardens can do to help? Join us for this 1-hour webinar that discusses how Ohio’s urban forestry evolved, tree selection, planting, care, and much more. Register Here: