For the first three weeks after planting, water every second or third day, and once a week through summer thereafter. If the weather is very hot, windy, and dry increase the frequency to prevent wilt, particularly on small, tender plants or lawns.
Discontinue watering when there is at least one inch of rainfall per week, otherwise hand water about once a week.
Late Fall to Winter
If there is inadequate rainfall, water the plants every 2 weeks until frost. When the tree leaves drop, make a final application of water just before the ground freezes.
Subsequent Spring and Summer
Water trees and shrubs deeply every couple of weeks as weather dictates. Perennials may need more frequent watering.
Water daily for three weeks after installation, thoroughly soaking the sod each time. After about four weeks, water the established sod only once per week, applying one inch of water.
Apply one inch of water daily until all the grass has germinated. If adequate rainfall occurs to sufficiently moisten the top inch of soil, there is no need to water that day. When the lawn is two inches high, reduce watering to one inch per week or as needed to maintain green, actively growing grass.