Answer to Question 1
After 7 to 10 days without rain, grasses will wilt and should be watered to a 4- to 6-inch
depth to prevent permanent damage to the lawn.
Answer to Question 2
For cool season turfgrasses, fertilizer applications should be made four times per year.
The first application should be made in early spring to break dormancy, heal injuries,
and prevent the invasion of summer and annual weeds. The second application should
be made in the spring to help turf survive heat encountered later in the season. The
third application should be in late summer to stimulate new tillers and rhizomes for
the following year and also to help maintain a vigorous and green turf until the fall.
The fourth application should be made in the late fall to promote root growth until the
ground freezes and to aid in early spring greening.