When should I turn on my lawn irrigation?

Starting your sprinkler system for the season will depend on the weather conditions and your watering needs. As a general rule, the system should not be opened until the threat of frost has passed. In Colorado, this can be a bit difficult to judge. If you are an early planter, we recommend waiting to open your system until after April 15; with one caveat: the dreaded Mother’s Day Freeze. Colorado’s higher elevation planting standard is the 2nd Sunday in May. This is considered to be a


safe date to avoid frost damage, making May the ideal month to open your system. If Colorado has a particularly rainy spring, you may even choose to open your system in early June; nevertheless, the system should be fully operational before the heat of the summer.