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HIGH PARK NATURE is a joint project of the High Park Natural Environment Committee and High Park Stewards. We welcome your feedback, suggestions, articles and photos. Please contact us at mail@highparknature.org

ABOUT THE PHOTOS: Most of the photos on this site were contributed by local photographers and taken in High Park. Please do not copy or reproduce them without permission. If you would like to contribute photos (low resolution) for this website, please contact us at mail@highparknature.org

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Volunteer Opportunities 

Sunday, March 12, 2016

Transplanting in the Greenhouse

View Pingg invitation, Directions


10:30 am to 12:30 pm, Meet at the High Park Greenhouse, Greenhouse Road

DST: Please set clocks ahead 1 hour on Sat. night.

For all current Stewards by invite

Greenhouse work is very popular, but due to space limitations we must restrict the number of participants to those who are currently on our email list.

It's finally time to begin the seeding process and transplant the seedlings that have been growing over the winter in the greenhouse. These will be used for plantings in different parks and for our native plant sale. Due to the cold weather please meet us in the main greenhouse first and we will go to the cold frame if necessary. All tools will be provided, but dress in layers as the temperature is unpredictable.

Please bring anything you may wish to drink or snack on with you as there is no kitchen available.


For more information on planting for restoration projects. See page 20 in particular for growing techniques: - Planting the Seed (pdf) Environment Canada

Getting a jump on spring
Some of these plants may be available at our native plant sale
Repotting the new seedlings
These are started early from seeds collected in the park

Sunday, February 26, 2017

Biological Control Programs for Invasive Plants

W.D. (Bill) McIlveen will speak on the introduction of insects, and sometimes plant diseases, to control invasive plant species

Sometimes they work, but sometimes there are complicating factors...examples include purple loosestrife (right).

View Pingg invitation


10:30 am to 12:30 pm

Howard Park Tennis Club, 430 Parkside Drive M6R 2Z3.

Speaker: W.D. McIlveen

W.D. (Bill) McIlveen has been involved in Ontario’s ecological land classification, rare and introduced species studies, terrestrial toxicology projects, the Breeding Bird Atlas, and the Ontario Tree Atlas. After a career with the Ontario Ministry of the Environment, he served on the executive of the Field Botanists of Ontario and the Toronto Entomological Association, among other organizations. He is currently working on a new and comprehensive Flora of Halton.

Articles on this topic

Purple loosestrife beetles used as a bio-control, 2013, River News, Wisconsin

Ontario Invading Species Awareness Program

Common invasive species in High Park

Garlic Mustard
Dog-Strangling Vine aka Pale Swallow Wort
related to milkweed, poisonous to Monarchs
Asian Bittersweet up close
High Park September 2010
Hedge Parsley
A problem all summer
Himalayan Balsam
one of the prettier invasives we remove in mid summer
Common Buckthorn
a very invasive shrub in wooded areas

Sunday, February 12, 2017

Seed Cleaning in the Greenhouse

for Active Stewards

View Pingg invitation TBA

Greenhouse Directions

10:30 am to 12:30 pm

High Park Greenhouse, Greenhouse Road

By Invite - Updated: the session is full. We work even in snow, it's inside.

Seed Cleaning in the Greenhouse is very popular, but due to space limitations we are only sending invites to those on our email list, especially to those who have braved the elements and assisted in planting, invasive species removal, at our native plant sale, or are working on special projects. This special activity is a benefit for helping out during the past year.

RSVP to invitation is required.

Seed Cleaning is the separation of the usually tiny seeds from the dried flower heads, collected in High Park in the last year. Planting these separated seeds has proven to be very successful in cultivating as many rare and limited back oak savannah plants as possible.


For more information on using seeds in restoration projects. See page 23 in particular for seed cleaning: - Planting the Seed (pdf) Environment Canada

Some low-tech tools of the trade
Greenhouse, Winter 2014
Separating the seeds from the flower pod/head
Butterfly Milkweed is one of the easier seeds to separate

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Content last modified on March 12, 2017, at 04:56 PM EST