Colorado's Dry Winters:
A Threat to Your Trees and Shrubs
Colorado’s dry winters are the leading cause of death for landscaped trees and shrubs. Protect your investment with our Winter Watering Program, a crucial step to ensure your trees and shrubs survive and thrive despite drought conditions.
Why Winter Watering is Essential
The Impact of Colorado’s Fall and Winter Climate:
- Dry air and low precipitation
- Little soil moisture
- Fluctuating temperatures
- Limited snow cover from October to March
These conditions can harm trees, shrubs, perennials, and lawns, causing root system damage, increased vulnerability to pests and diseases, or potential tree and shrub death in late spring or summer.
Winter watering is an investment in the health and longevity of your landscape
- Prevents Winter Drought Stress:
- Dry winters can weaken or kill trees and shrubs.
- Supports Root Health:
- Hydrated roots are better equipped to survive freezing temperatures.
- Reduces Pest and Disease Risk
- Healthy, well-watered trees are less vulnerable to infestations and infections.
- Protects Your Investment:
- Mature trees and shrubs represent significant value in your landscape. Winter watering helps them stay strong and vibrant.
Proactive Tree & Shrub Health Checks
Caring for your trees and shrubs starts with proactive checks. Regular assessments help identify potential issues before they escalate, such as:
- Drought stress signs
- Pest infestations
- Soil compaction
A proactive approach ensures your trees and shrubs are set up for long-term health, particularly during Colorado’s harsh winters.
Establishment Period:
Crucial for New Trees and Shrubs
Newly planted trees and shrubs require extra attention to thrive. The establishment period—generally the first 1–3 years—is when roots are developing. During this time:
- Water new trees twice a month during fall and winter.
- Focus on watering within 3 feet of the trunk for best results.
- Use mulch to retain soil moisture and regulate temperature.
Proper care during the establishment period sets the foundation for strong, healthy growth.
The Importance of Moisture Readings
Knowing how much moisture is in the soil is critical to your tree and shrub health. Moisture readings help:
- Determine whether supplemental watering is needed.
- Prevent overwatering, which can damage root systems.
Tip: Invest in a moisture meter or contact professionals to ensure the soil moisture levels are ideal for your landscape.
Watering on Days Over 40 Degrees
Even in the winter, some days are warm enough to water your trees and shrubs. When the temperature is over 40°F:
- Water early in the day to allow moisture to soak into the soil before freezing.
- Focus on the area under the tree canopy, particularly within the drip line.
This helps maintain soil hydration and protects roots from drying out during extended dry periods.
Fall & Winter Drought
Limited summer rainfall and water restrictions can deplete subsurface soil moisture. Upon digging, people may find little moisture at 8 to 12-inch depths where most tree roots are located. Special care is needed for:
- Mature trees to prepare healthy buds
- Young and evergreen trees to ensure survival
Key Fall Watering Tips
- Water under the branches within the drip line.
- Aim for a depth of 12 inches.
- Provide 10 gallons of water per inch of trunk diameter.
Winter Watering Schedule
- September:
- Water 3 times per month.
- October – March:
- Water 1-2 times per month.
- Young trees and evergreens need twice monthly.
Winter Application Methods:
- Use soaker hoses, soil needles, or soft spray nozzles.
- Avoid runoff by soaking, waiting, and soaking again.
- For soil needles, insert at a 6–8-inch depth at an angle.
Watering Guidelines for Shrubs
- Small Shrubs (<3 feet):
- 5 gallons per month
- Large Shrubs (>6 feet):
- 18 gallons per month
- New Shrubs:
- Water twice monthly
Mulching Tips:
Mulch around shrubs to retain moisture and protect roots.
- Apply mulch to a depth of 4 inches within the drip line.
- Leave 6 inches of space around the tree trunk.
Contact Front Range Arborists
Colorado Springs, CO
Based in Colorado Springs, CO, Front Range Arborists offers arborist services including tree trimming, tree and stump removal, pest control and beetle prevention, fire mitigation, shrub care and more tree services. Serving Colorado Springs, Woodland Park, Fountain, Monument, Black Forest, Manitou Springs, and other surrounding areas. Call Front Range Arborists at (719) 635-7459 or use our online form for your free estimate today!
