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Patrick Colgan Memorial Lecture: Prescribing Nature

Special Event Accessible Event

Date & Time:

Thursday March 23, 2023; 7 to 9 p.m.


Rock Garden (1185 York Boulevard)


Courses and Programs, Evenings, Health & Wellness, Speaker Series, Special Event


1 to 2 Hours


Free, Pre-Registration Required

Event Description

Prescribing Nature: What’s The Science Behind Park Prescriptions?  

The 9th Biennial Patrick Colgan Memorial Lecture
Thursday March 23, 2023
7 p.m.,
Rock Garden

Can patients benefit if doctors prescribe time in nature? Dr. Melissa Lem, director and founder of Park Prescriptions for the BC Parks Foundation, and Dr. Myles Sergeant, founding medical director of the Shelter Health Network, Executive Director of the Canadian Coalition for Green Health Care, will come together to share their experiences and the connections between the environment and our health.

The Patrick W. Colgan Lectures at Royal Botanical Gardens are biennial public presentations. The goal of the series is to invite leading-edge researchers who are also well known for their engaging and accessible public presentations to speak on scientific topics that are relevant to RBG’s mission and are of present public interest.


*** Online ticket sales have now closed. Please email our Bookings Clerk at to request registration. For RBG members, please include your number. No registrations will be taken after 3:30 pm Thursday March 23, 2023.***

Join us in-person or online for this special hybrid ticketed event, pre-registration is required.

Following his death in 2004, Patrick Colgan’s family and friends established the Patrick Colgan Fund at Royal Botanical Gardens, to help to support a series of lectures on science in the public interest for the general public at RBG. Donations to RBG in support of the lecture series are always welcome.

Type Ticket Price
In-person (limited seating) SOLD OUT
Online Free, registration still required
Donations Suggested donation $10

Please pre-register by March 20**

Please note: RBG has implemented a NEW CRM system, putting all your transactions and registrations into one place. Creating your account is simple and should only take a few minutes.

RBG Members: How to activate your online account

Simply log in to your NEW RBG online account using the email address associated with your membership!

  1. Visit
  2. Enter your email address and “submit” (NOTE: RBG members must use the email associated with their current membership)
  3. Check your email for a link to reset your password
  4. Log in with your new credentials and check your account information.

Once your member account is set up, visit the registration page and your tickets will be available to register!

If you do not receive a password reset email within 10 minutes, its possible that email address is not the primary contact on your RBG Membership. Get in touch with the memberships team for more information.

Non members: How to create your online account

If you’re an RBG Member, your account is waiting for you! Instead of creating a new account, use “forgot password” option.

  1. Visit
  2. Click ‘Register’.
  3. Input your user information, customize your email preferences
  4. Once you click ‘Create Account’ you’re all set! You will be redirected to a page where you can purchase tickets for this lecture, select special events, and more!
Dr Melissa Lem long black hair with Asian features

About Dr. Melissa Lem

Dr. Melissa Lem is a Vancouver family physician and Founder and Director of PaRx, Canada’s national nature prescription program powered by the BC Parks Foundation. Also, as President-Elect of the Canadian Association of Physicians for the Environment, she is an internationally recognized expert on the nature-health connection.

A senior writer for the CBC, her work has been widely published by media including the Vancouver Sun, Toronto Star, Montreal Gazette, The Narwhal and National Observer. She was the resident medical expert on CBC TV’s hit show Steven and Chris for four seasons and is a regular contributor to CBC Radio and CTV News.

Dr. Lem was the inaugural winner of University College’s Young Alumni of Influence Award at the University of Toronto, a 2020 Joule Innovation grant recipient from the Canadian Medical Association, a 2021 World Parks Week Ambassador, sits on the Advisory Committee of the IUCN World Commission on Protected Areas Health and Well-being Specialist Group, and is a Clinical Assistant Professor at the University of British Columbia.

headshot of Dr Myles Sergeant

About Dr. Myles Sergeant

Family Physician at Hamilton Health Sciences and Shelter Health Network 

Dr. Myles Sergeant is a family physician who has worked with vulnerable populations, including people experiencing homelessness and/or addictions, and the elderly, over the past 25 years. Recognizing the intersection between environmental issues and our health, he is dedicated to mitigating climate change and co-founded the non-profit organizations Trees for Hamilton in 2012 and PEACH Health Ontario in 2021, and has recently been named Executive Director of the Canadian Coalition for Green Health Care. 

More Courses & Workshops

RBG offers courses and workshops for families, kids and adults in the areas of gardening, nature, botanical arts and wellness. View the Public Programs Calendar for all upcoming programs, courses and workshops.