Seasonal Tree Care
is a great time of the year to plant trees. It is less stressful on the tree to plant before the dry, hot temperatures begin.
Help out your street trees! Many trees growing in the right-of-way strips do not have a water source. A cooperative effort exists between the City and the adjacent property owners in caring for these trees. We ask that residents help water trees throughout the growing season. Check soil moisture every week by digging 4"-6" deep about 24" from the tree trunk. Water if the soil is dry.
Spring and summer is often when people consider changing or improving their landscaping. Before beginning work, consider the possible impacts to your trees.
Contact the Forestry Division before doing any major landscape projects within the root zone of City street right-of-way trees.
Most homeowners realize the need for watering during the growing season, however many may not realize the need to water when their trees and shrubs are dormant. During this time, some root development may occur, especially for newly planted trees and shrubs. Without water they may dehydrate and die before spring. Winter watering can help save your trees. Even though trees are dormant during the winter, their root systems need moisture to remain alive. Since winter temperatures in Colorado fluctuate greatly, it is best to closely observe soil conditions to determine when watering is needed. For extended warm, dry winters even established trees need supplemental watering.
Periods of drought are common on Colorado's Front Range but even in years when drought is not a concern winter watering is crucial! This area is naturally a semi-arid, shortgrass prairie that would have few trees without irrigation. Growing trees here is difficult in wet years, not to mention the challenges in drought years. Properly placed and maintained trees are an asset to the environment and to our community.
Evergreen trees are more at risk from drying winter conditions and need more water to survive because they retain their needles and can lose water all winter long. Winter winds can compound the problem by pulling water from the needles. Winter damage is typically more severe when trees are located on hot, dry exposures such as the south or west sides of structures. Symptoms from lack of winter watering can appear immediately and will include browning of needles. The entire tree may be affected.
Even though deciduous trees appear dormant during the winter, their root systems continue to slowly grow and need moisture to survive. Water is lost through twigs and must be replaced to prevent damage. Deciduous trees most at risk from drying winter conditions are shallow-rooted species such as maples, lindens, birches and any recently planted tree. Damage from lack of winter watering won’t show up until the following spring and could include branch dieback, reduced leaf size, chlorosis (yellowing of leaves) or tree mortality.
Some winter watering tips:
Well-timed fall and winter watering may allow a tree to survive on less water than a regime of plentiful water applications during the growing season.
Authorization is needed from the City Forester before planting, pruning, spraying or removing any tree in the city right-of-way. This enables the Forestry Section to keep an up-to-date tree inventory and ensures proper species selection, placement and care of new or existing trees. For more information, call the Forestry office at (303) 441-4406, Monday-Friday, 7:00 a.m. - 3:30 p.m
Last Updated on Monday, 05 November 2012 13:14