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| Tree Care Guide - Denver Water Board |
Tree care suggestions for winter watering from Professor James Klett, Horticulture and Landscape Architecture, Colorado State University.
Focus on the most vulnerable trees:
1. Not all trees face the same threat from the drought and dry weather conditions.
2. Trees planted within the last 3 years should be the first you water.
3. Next should be evergreen trees since their needles continue to demand water over the winter. They are going to desiccate and dry quickly with all the foliage, so evergreens are more critical than deciduous trees.
4. Water any trees with shallow root systems like: birch, maple, linden, alder, hornbeam, dogwood, willow and mountain ash.
Wait until the weather warms up:
1. Only water trees when temperatures are above 40ºF – mid-day so the moisture will have time to soak into the roots before freezing night temperatures.
Provide the right amount of water:
1. Check the thickness of the tree trunk when trying to figure out how much to water. Apply 10 gallons of water for every inch of trunk diameter.
2. Don’t water directly against the base of the trunk – rather you should water along the ‘drip-line’. This is the area directly located under the outer circumference of the tree branches.
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| Denver Parks and Recreation’s forestry operations |
Watering the trees:
1. Consider using a pipe (or forks/needles) that attach to the end of the hose and can be pushed about an inch into the ground, which ensures the water sinks into the soil.
1. Consider using a pipe (or forks/needles) that attach to the end of the hose and can be pushed about an inch into the ground, which ensures the water sinks into the soil.
Mulch:
1. Consider applying mulch around the trees to help conserve the soil moisture.
Article: CPR News December 31, 2021