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Summer Lovin’ for Your Trees: Tips for Summer Tree Care

Summer is the time to turn our attention to caring for trees, those that are newly planted and those that have been around for years. Summer is the ideal time to identify potential threats to trees and apply proper care, ensuring that they continue to thrive.

Below are a few helpful tips that you can use this summer to ensure optimal health for your trees and for our ecosystem. If you require assistance or additional information, a list of forestry and tree care services is available from the Ontario Woodlot Association.

  • Late summer is a good time to observe changes in the crown of your hardwood trees. Dead branches or dieback are potential signs of declining health. If these issues are identified, it is best to have a professional assess the health of the tree.
  • Check for signs of the Emerald Ash Borer. Look for dieback in the upper crown or sprouts coming from the base of the trunk. Less visible signs include small D-shaped holes in the trunk.
  • If your ash tree shows no signs of infestation, you may wish to treat the tree using TreeAzin, administered by a professional.
  • Defective limbs are easier to identify during the summer, making it an appropriate season for pruning.
  • If you have any questions, be sure to consult a forestry professional or arborist for assistance in caring for your trees.

Ontario’s forest includes all trees and green spaces, from our expansive boreal forests and large plantings on rural lands to urban parks and street trees. Each of us can foster healthy forests through our choices and actions to support healthier and more vibrant communities.

That’s why Forests Ontario proudly administers the government of Ontario’s 50 Million Tree Program, designed to plant 50 million trees across the province by 2025. Started in 2008, the 50 Million Tree Program works to increase Ontario’s forest cover by planting on marginal farmland and other idle yet productive land areas. Landowners with areas suitable for planting of one hectare or larger may be eligible for planting subsidies. Forests Ontario connects landowners with local planting partners who assess each property to provide a thoughtfully designed planting scheme tailored for your land.

The 50 Million Tree Program is designed to make the tree planting process as easy as possible for Ontario’s landowners. Landowners are able to access subsidies covering up to 85% of total planting costs and practical support and ongoing forest management assistance. Visit or contact our Forestry Outreach Coordinator at 1.877.646.1193 ext. 239 or at