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Winter Pruning (Online and In-person)

Schedule and location

Next offered winter 2021

Registration opens November 2020


Fees and Registration

$39.00 member
$46.00 nonmember
(Fees include admission to the Arboretum)

BY PHONE: 630-719-2468 ( Monday through Friday, 9:00 a.m. to 4:00 p.m.)

Course description

Practice correct pruning techniques and learn which plants to prune now and more importantly, which to prune later. Known as “dormant” pruning, thoughtful removal of branches in winter is easy and encourages proper spring growth.

Complete a short online component at your convenience before the in-person session. In-person class time will be spent in the field with an expert, who will demonstrate what to prune and how to do it. Then put on your gloves, grab some pruners, and try it yourself.

Course number



Katrina Lewin, Plant Records Coordinator

Katrina Lewin was a horticulturist at The Morton Arboretum for 15 years prior to her current role in plant records.  She has taught pruning, plant identification, and other classes here since 2006.  At home she enjoys spending time in her ornamental and vegetable gardens.

Course details

Must have access to the internet and provide a unique email address for each registrant at registration. 
Must know how to use a web browser (ex: Chrome, Safari, Internet Explorer) and how to send and receive email.
You will receive an email with log-in information at noon on the day the online materials become available. Complete the online materials before you arrive for the in-person session.
You are expected to complete the online content before you arrive for the in-person session.
Plan to spend about 60 minutes completing the online material.
Students will have access to the online materials for 60 days after the first day they access the course.
Notes:  In-person session will be held indoors and outdoors. Please dress for the weather and bring gardening gloves. You are welcome to bring your own pruners if you have them; pruners will also be provided. Limit 16

Winter Pruning (Online and In-person)