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Growth Regulators for Tree Health & Aesthetics


Trees only have so much energy to perform five different functions:

  1. Growth
  2. Energy storage
  3. Repair of damaged tissue
  4. Defense
  5. Reproduction

Often, growth is the least desirable of these functions in an urban setting, or least important for the tree’s vigor as it ages. By reducing the amount of energy dedicated to shoot/canopy growth, a tree can invest this energy into  the other functions.

Growth regulator treatments are hormone treatments that can redirect where the tree puts its energy. Over the three years that it lasts, it can reduce the growth by one third to one half. This allows the tree to divert energy to more important functions.

We use growth regulators in two scenarios:

  1. It can be used to help slow the growth of a tree that is too close to a house, power lines, driveway, etc. While it will still grow, it won’t grow as vigorously, which can reduce the need for frequent trimming. Alternatively, we will use this for its secondary benefits…
  2. By redirecting the energy toward the roots or defense, we can help an ailing tree that struggles with nutrient deficiency, drought, stress, or disease  infection. ​

Our product is administered via deep root soil injection and lasts approximately three years. It is not recommended for Japanese maple, redbud or dogwood species.

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