Determining the best time to fertilize your lawn will depend upon the type of grass you’re growing. All grasses need certain nutrients and nitrogen during their progressive growth seasons in order to grow evenly throughout your lawn. Timing is everything as fertilizing your grass when it is dormant would be a waste of time, money, and energy. However, spacing the fertilizing too far apart could stimulate fluctuations in the way the grass grows as it can be growing fine one minute and then slow down without notice.
Warm Season Grasses
Warm season grasses include types such as Bermuda grass and St. Augustine grass. These grasses grow more efficiently during warmer seasons. You will need to start feeding and fertilizing your warm season grasses starting in the late spring through the early fall. Feeding too early in the spring could result in fast growth of cool season weeds which is ugly on the lawn. Fertilizing too late in the fall could result in the grass being less rich when entering the colder season and will become less resistant to damage during the winter months.
Cool Season Grasses
More common cool season grasses include tall fescue and Kentucky bluegrass. They grow better during the cooler months of fall and spring. When dealing with milder winter climates such as the deep south the cool season grasses can also grow well in the winter. Fall is typically the best time of the year to fertilize the cool season grasses so they can grow during the colder weather. You should take caution in fertilizing your cool season grasses too early in the spring or you could land up with lush top growth and damaged root growth which is never a good result. Fertilizing these grass types in the fall means you wont need another application until late spring. While cool season grasses stay green during warmer months you should never fertilize during the mid summer. Since growth slows during the hot summer months adding fertilizer to the grass during that time will weaken the condition of the law. The exception to this rule is for people who live in far northern or highly elevated climates in which the weather stays cool all summer long.
Tips for Best Results
For maximum appearance it is best to fertilize your lawn once every six to eight weeks around the grass growth period. Break down the annual requirement of nitrogen into several applications. For illustration you could do one application in the spring and two or three applications in the fall for cool season grasses and three applications in the summer for warm season grasses. For people who are not big fans of lawn maintenance you can skip your fertilizing process to once every peak growing season such as once in the fall and spring for cool season grass and once in the summer and fall for the warm weather grasses.