Question:
How often should I fertilize my lawn?Answer:
In Iowa, Kentucky bluegrass lawns can be fertilized in spring (April or May), mid-September, and late October/early November. The number of fertilizer applications is largely determined by an individual’s desires or expectations for their lawn.
Three applications of fertilizer (the first in spring, the second in mid-September, and the third in late October/early November) would be appropriate for individuals who want a vigorous, dark green lawn with higher quality and maintenance requirements.
A single application of fertilizer in late October/early November would be sufficient for individuals who prefer minimal fertilization and maintain a healthy lawn, but with a lower quality and maintenance level.
A moderate fertilization plan consists of an application of fertilizer in mid-September and second application in late October/early November.
Each application of fertilizer should consist of one pound of actual nitrogen per 1,000 square feet.