Top 5 Mistakes to Avoid with Your Trees in Calgary

by | Mar 19, 2025 | Trees | 0 comments

Maintaining healthy trees in Calgary can be a bit of a challenge given the city’s unique climate and soil conditions. To help your trees thrive and enhance your landscape, it’s crucial to avoid common pitfalls that can jeopardize their health and longevity. Here are the top five mistakes you should steer clear of:

  1.  Improper Watering
    Overwatering and underwatering can both spell disaster for trees, especially in Calgary’s variable climate. Overwatering can lead to waterlogged roots, which suffocate and become susceptible to diseases. Underwatering, especially during dry spells, can stress trees and make them more prone to pests and diseases. The key is to provide a deep, infrequent watering that encourages strong root growth, rather than shallow, frequent watering.
  2. Planting the Wrong Tree Species
    Choosing trees that aren’t suited to Calgary’s hardiness zone or soil type can lead to poor growth and increased vulnerability to weather stress, pests, and diseases. It’s essential to select species that are adapted to the local climate and soil conditions. Avoid exotic or non-native species that require more maintenance and are less likely to thrive.
  3. Poor Pruning Practices
    Pruning trees incorrectly or at the wrong time of year can cause significant damage. Over-pruning can expose trees to disease and weather damage by removing too much foliage, which trees need for photosynthesis. It’s best to prune during the dormant season and never remove more than 25% of a tree’s crown in one pruning session. Also, avoid topping trees—this can lead to weak regrowth and structural problems.
  4. Ignoring Tree Health Issues
    Failing to monitor trees for signs of stress, disease, or pest infestations can lead to severe problems or even tree death. Regularly inspect your trees for unusual leaf discoloration, defoliation, or structural changes and consult with a professional arborist if you suspect any issues.
  5. Damaging Tree Roots
    Construction, landscaping activities, or even frequent foot traffic can severely damage a tree’s roots, which are vital for nutrient uptake and stability. Avoid compacting the soil around the tree base and steer clear of cutting into roots when digging or planting nearby. Where possible, create a wide mulch ring around the base of the tree to protect the roots and retain soil moisture.

Trees are EXPENSIVE. Protect your investment by avoiding these common mistakes, you can ensure your trees remain a vital, vibrant part of your Alberta landscape for years to come.