Many people wait to long before they start watering their lawn. You need to start early in the season well before the hot summer begins to ensure that your lawn gets thru the summer. There is no one prescription for watering your lawn because of many factors, such as soil type, grass type, temperature, water pressure, type of sprinklers, fertility levels..... Watering your lawn should be looked at as a long term cultural practice rather than a reactive type measure. In other words don't wait for it to get hot to start watering, that can cause damage to the turf.
In general I like to start in April so that I'm prepared for later in the season. Start by just having your hoses, connections, and sprinklers ready and test them to make sure they are operating correctly. If you have an irrigation system, arrange to have it started early in the spring. I like to water periodically in the early spring just to have a watering strategy.
As the season progresses the amount of watering should increase as it gets warmer and dryer. Your lawn watering will peak in the hot summer months when temperatures reach 85+ degrees.
HERE ARE SOME HELPFUL TIPS
- Irrigate until water puddles slightly on the soil,but does not run off
- Let water overlap onto pavement slightly
- Try watering during early morning hours (12-5am)
- Get hoses and sprinklers ready in early spring
- Have your irrigation system started in early spring
- Test your watering in spring to make sure you are prepared
- Sandy soils need longer watering times
- Clay soils do not absorb water rapidly so you may need to do 2 light watering's at one time instead of 1 long watering