Trees often suffer in the winter in Reno, Nevada's high-mountain desert climate. The combination of dry air and freezing winds causes trees to dehydrate quickly without proper watering. Although Reno does experience heavy winter snows, the snow often contains a low water content. Winter rains also might not provide adequate moisture, especially with inconsistent or light rainfall. To keep your landscape looking beautiful year-round, don't forget to water your trees.
Pay attention to monthly precipitation levels. If there has been less than 1 inch of rain or less than a foot of snow in the last few weeks in Reno, your trees need water.
Dig 3 or 4 inches into the soil near your trees if there hasn't been a lot of rain recently. If the soil is dry that far down, your trees need water. Take special care to check evergreen trees, which are especially prone to dehydration because they lose water through their foliage all year.
Water trees older than 3 years old outside of the drip like to encourage strong, broad root growth. The drip line is the outer reach of the branches. Water younger trees closer to the trunk.
Give your trees water in the middle of the day when the ground isn't frozen. Watering in the middle of the day gives roots a chance to absorb as much water as possible before the ground freezes again at night.
Water the entire area around the tree trunk deeply. Avoid splashing water on the trunk and foliage because it can turn to ice and damage them.
Water your trees every three weeks to make up for any lack of natural precipitation.