Why Be Happy to Have an Oak as Your Street Tree?

Anelia Tichkova • March 2, 2026

Anelia’s Tree Corner

Interesting facts and tree care tips from certified arborist Anelia Tichkova

Oak trees are remarkable. Of the 11 native oak species in Canada, 10 grow in Ontario, and Oakville, situated between the Carolinian and Great Lakes–St. Lawrence forest regions, was once rich with these mighty trees. Today, urban growth, climate pressures, and invasive species have made mature oaks increasingly rare, though a few still stand tall across the community.


Are oaks one of the most valuable urban trees you can have?


Absolutely! Here are just a few of the reasons:


  • Native oaks are biodiversity powerhouses! According to some sources, oaks support more life than almost any other tree genus in North America. 
  • Because so many organisms depend on them, oaks function as keystone species — their presence boosts the entire ecosystem, and their loss causes a major drop in biodiversity.
  • They are large and long-lived trees, allowing significant carbon storage.
  • Their big canopies offer shade and energy saving during the summer.
  • Oaks are resilient to heat, drought and urban stress, and their sturdy and balanced structure makes them safer in storms.
  • Their deep roots improve stormwater absorption and reduce flooding
  • Oaks hold on to chlorophyll longer and they are late to drop their leaves. THEY ARE SIMPLY BEAUTIFUL!


How do oak trees help your vegetable gardens and orchards?


More insects, birds, and soil life around an oak can improve pollination and overall garden health.


What do I do with so many acorns falling on the ground?


If your tree produces acorns, this means the tree is mature enough to reproduce, and also that the tree had enough resources from previous years. Acorns are nature’s hard-shelled treasures! Here are a few suggestions of what to do with them:


  • Leave them on the ground for wildlife (unless they are a tripping hazard).
  • Collect them and sort them for propagatiion or donation to a local nursery.
  • Dispose of them in your yard waste.


Oaks are woven into Oakville’s cultural identity, reflecting the town’s history and natural heritage. They don’t just line streets and parks, they define them!


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