Deep Root Fertilizing

Fertilizing provides trees with the nutrients needed to develop leaves, roots, and wood. A healthy properly fertilized tree is more likely to repel diseases, cope with insect damage and other stresses. Availability of nutrients is often limited in urban environments, providing supplemental nutrients in liquid solution through deep root injection targets tree and shrub roots in the area where most feeder roots are found, in the upper 40cm of soil.

Our injection tip penetrates the sod layer and avoids the runoff of top dressing. We use two different formulas a spring feeding which has available nitrogen, for immediate growth, slow release nitrogen, to sustain growth throughout the season, and other macro and micronutrients. It is recommended to promote growth and improve health.

Our fall formula has more phosphorus and potassium to promote bud formation, wood production, and root growth helping the tree to harden off for the winter. We recommend this formula to complement the spring feeding in trees under stress or have been damaged.

  • Deep Root Fertilizing
  • Deep Root Fertilizing
  • Deep Root Fertilizing
  • Deep Root Fertilizing

what our clients say

  • Have used this company for decades. They are the best - courteous staff, professional work and very reasonable prices for all that they do.

    Phyllis Kingsley

    CTS has been my go-to "Tree Team" for over 4 years . - Outstanding customer service! - Friendly and knowledgeable staff! - Fast and thorough cleanup! - Industry leading certifications!... read more

    Jim Chapel

    Top notch crew, very knowledgeable and left the place clean and tidy.

    Chris Vagg
  • The ladies in the office were super friendly and informative. The crew were exceptional. I thoroughly enjoyed my experience with this company - the clean up was above par and... read more


    We have had the pleasure of working with CTS for many years and have found the teams to be professional, courteous and accommodating.

    Michelle Braga

    Nothing To Bark At. All good, they know TREES

    Brian P
  • excellent professional service at a reasonable price

    Nancy Hughes

    I have nothing but good things to say about my dealings with Colonial over the years. We have a few trees on our property and I've had them out... read more

    Heather Green

    Called on this company a few times over the years! Great crew that work very hard! Will be calling on them again soon! Thanks!

    Steven Little
  • Looks like these guys were contracted to deal with the stumps left over from all the ash trees that had to be cut down in Mississauga, at least on my... read more


    Great service from start to finish!

    michelle lemme

The #1 Tree Service in Halton Region

We provide professional tree care services in various locations.

  • Halton
  • Peel
  • Caledon
  • GTA
  • Wellington
  • Dufferin
  • York
  • London Middlesex

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