With your sprinkler system winterized, it’s important not to activate it until spring to avoid damage from freezing temperatures. In many parts of Colorado, the fall and winter months are characterized by dry air, scarce precipitation, limited soil moisture, and temperature fluctuations. From October through March, snow cover, which helps maintain soil moisture, may be minimal or absent. Without supplemental watering, trees, shrubs, perennials, and lawns can suffer significant damage.
Extended dry spells during these seasons can harm or even kill parts of plant root systems. Such damage might not be immediately visible as plants can still start growing normally in spring using the energy they stored previously. However, these plants might exhibit increased vulnerability to stress, diseases, and insects as temperatures climb in late spring and summer.
Watering Tips for Cold Months:
- Water only when the air temperature is above 40 degrees Fahrenheit to prevent freezing. Ideally, water should be applied in the middle of the day so it has time to absorb into the ground before temperatures drop at night.
- Be cautious of ice formation on lawns, which can persist for over a month and suffocate grass or cause the blades to mat.
- Plants near buildings, walls, and fences, especially those facing south or west, may receive more reflected heat and require extra attention to prevent damage.
- Windy areas tend to dry out soil and vegetation faster, necessitating more frequent watering.
- Lawns exposed to warm conditions are especially susceptible to mite damage in late winter. Regular watering is the most effective way to prevent this type of turf injury.
Regular Monitoring: Check the weather regularly and provide water during prolonged dry spells without snow—typically once or twice a month.
Important Reminder: Always disconnect and drain your hose after watering to prevent freezing and potential damage to your home’s plumbing. Leaving a hose connected can cause the spigot to freeze and burst.
