Plant Health Care


Anti-Desiccant tretaments are a protective treatment used on evergreen trees. Their purpose is to protect these kinds of trees from winter desiccation.

Winter desiccation or winter burn, is a common type of winter injury that occurs when the amount of water lost by the foliage exceeds the amount picked up by the roots. All trees lose water during normal metabolic processes, even in winter.

In the winter, evergreens often lose moisture from drying winds. If the ground is frozen, the plant cannot replace the lost moisture, eventually leading to severe damage of the needles or even cause death to the plant. The damage can be especially severe when combined with road salt, drying winds, and leaf scorch from the reflected glare of snow. An anti-desiccant will help retain the moisture in a trees needles for up to 4 months in the winter.

*Fun Fact: Ever wonder how the department stores or companies keep their Christmas decorations looking crisp through the whole season? Anti-Desiccants are sometimes used to treat wreaths, Christmas trees or bows during the holiday season!

Which plants benefit from Anti Desiccants?

  • Broadleaf Evergreens such as:
  • Holly
  • Rhododendron
  • Boxwood
  • Laurel
  • and Confider Evergreens such as:
  • Yew
  • Pine
  • Arborvitae

Anti Desiccants are especially important here in Colorado as our most common trees consist of Lodgepole and Ponderosa Pines, with the Lodgepole covering about 60 percent of tree cover.

Anti Desiccants have the best results when applied:

  • In late fall, before freezing weather sets in (and before the soil freezes)
  • Before snowfall
  • When the weather is clear but not hot, around 40 to 50 degrees
  • When there is no recent rain or wet foliage
  • There is no rain expected in the immediate future

We offer Anti Desiccant treatments here at Autumn Tree and would be more than happy to help you protect your trees this winter.