The short answer is, yes! Winter watering can really be a lifesaver for your trees. Watering is typically part of regular tree and shrub care during the warmer months, but many people don’t realize that watering during a tree’s dormant season is just as beneficial. Here’s why:
- Root development occurs during dormancy and is especially active in newly planted trees and shrubs.
- There is not always enough snow cover to provide ample moisture.
- Winter watering helps prevent dehydration in drought conditions.
- During warm, dry winters, even hardy trees need supplemental watering.
How often do I need to water?
When considering a winter watering schedule, plan on watering your trees up to two times a month between October and March. Always water during the day when temperatures are above 40 degrees. This routine allows the water to soak in before cold nighttime temperatures. Do not water if the soil is frozen.
How much water is needed?
How much water your tree should receive depends on the size of the individual tree. A general rule of thumb is to use approximately 2 gallons of water per inch of trunk diameter (or width) per watering. Measure trunk diameter at knee height.
The most important area to water for deciduous trees is within the dripline (from the trunk to the outer edges of the tree’s branches). For evergreens, water 3-5 feet beyond the dripline on all sides of the tree.
What basic tools are needed?
Soaker hoses, soil needles, or hoses with a spray attachment, can be used to water trees in the winter. Do not turn on your irrigation system to water trees.
Consider adding mulch around all your trees and shrubs. Mulch is a key material needed to help your trees and shrubs retain water throughout the winter.
What else can be done?
Regular tree maintenance and fertilization is essential to the overall health and longevity of your trees. You can take action by consulting with one of our certified arborists to establish a proper trimming and treatment plan. If it’s been a couple years since we last looked at your trees, now is a good time to have them inspected.
