Latest Event Updates

TreeKeepers Update #10

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Oakvillegreen’s Workshops:

While we’re waiting for the fall planting season to begin we’re taking advantage of the warm weather to offer you some fantastic workshops. This past weekend we offered and invasive species workshop in partnership with P.O.W.E.R (Protect Our Water and Environmental Resources).

On July 26th there will be a tree inventory workshop taking place at Glen Oak Trail. More info is available here. If you can’t make the workshop on July 26th there will be another tree inventory workshop on August 9th taking place at Pelee Woods. For more info on the August 9th workshop click here.

There may also be a special pollinator workshop offered on August 13 – stay tuned for details!

Oakvillegreen’s workshops are part of the Oakville TreeKeepers program and are a great way to get outside to learn more about Oakville’s urban forest!

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Questions about Oakvillegreen’s workshops or the Treekeepers program? Want to RSVP for a workshop? Email

TreeKeepers Update #9

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A TreeKeeper’s week in review

July 12th: Week 3 with the fine folks of AmerisourceBergen. This week we were at Shell Park removing garlic mustard and buckthorn and mulching trees that had been planted a year ago.

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Ash trees with green ribbons:  If you have seen ash trees in your neighbourhood with green ribbons, like the one in the photo, it means they have been injected with the bio insecticide TreeAzin. TreeAzin injections can be an effective way of treating Emerald Ash Borer (EAB) and are part of the Town of Oakville’s Ash Tree Treatment Program.



July 14: Community Youth in Action Network (CYAN) Day of Action! There was lots of action going on in Pelee Woods. The groups explored Pelee Woods identifying and removing buckthorn and garlic mustard that have moved into this greenspace following ash tree removal.


And in the afternoon the kids at Oakville’s Eco-Adventure Camp were treated to a pollinator workshop and got to take home some lovely butterfly and bee houses.

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The week isn’t over yet! Tomorrow the Oakville TreeKeepers will be at Perkins Passage from 10am – noon with our friends from P.O.W.E.R (Protect Our Waters and Environmental Resources) for an invasive species workshop. Snacks are provided!

More info on this great event is available here.

To RSVP for this event email


TreeKeepers Update #8

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A friendly reminder not to dump your yard waste in Oakville’s greenspaces and woodlands!

We’ve been seeing this at a few of our sites this summer. Dumping yard waste is a bad idea because it can spread invasive species and harm native forest plants.

Instead you can try:

  • Recycling as much as possible
  • Composting yard waste

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Has yard waste been dumped in your favourite greenspace or woodland? To request a copy of this “Stop Dumping” graphic email

July 5th Corporate Greening Day:

This week 10 more volunteers from AmerisourceBergen joined us for their Corporate Greening Day. They were back at Bronte Bluffs Park pulling more garlic mustard. They pulled a total of 30 bags full of the invasive plant!


 Do you have garlic mustard on your property? Here are some tips for how to remove it:

  • Hand pull plants by pulling from as close to the ground as possible

    Garlic mustard at Bronte Bluffs Park is almost as tall as our Urban Forest Stewardship Coordinator.
  • Place pulled plants in garbage bags for disposal and tie shut. Why not yard waste bags or compost? Because garlic mustard can still seed even after it has been pulled so composting it will transport its seeds… it basically can come back from the dead.
  • After placing in garbage bags leave the sun for a couple days, then it’ll be ready to be disposed of.

If you’re interested in learning more about garlic mustard and other invasive species Oakvillegreen and P.O.W.E.R (Protect Our Water and Environmental Resources) are hosting an invasive species workshop on July 16th. For more info you can visit the event page or email

Perkins Passage July 16