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City worker watering a public tree.

Healthy trees are better able to withstand insect pests and disease.

Here are some guidelines for keeping your trees healthy.

  • Water your tree in the early morning or evening.
  • Check if the soil is moist to the touch, if so your tree may not need it.
  • Water around the tree's drip line (an imaginary line extending from the outermost branch tips straight down to the ground), rather than just around the trunk.

    Drip line

  • To reach the roots responsible for gathering water make sure the area around your tree is moist to a depth of 30-45cm below the surface, depending on the size of the tree.
  • During drought conditions, the soil may first repel the water. Water lightly several times on the first day until the soil will accept the water.
  • Trees can drown! Instead of watering often, water generously in one long, slow application.
  • After a good watering, let the area dry for at least a week before watering again.
  • Wood mulch will help to keep the roots cool and moist.
  • Water your trees well in early spring and fall to prepare for winter.

For More Information

311 Contact Centre

Online Contact 311 Online

In Edmonton: 311
Outside Edmonton: 780-442-5311

TTY 780-944-5555

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