A guide to fall lawn care for cool-season grasses

Spring is the season most often associated with lawn care, and for good reason. Grass starts growing in spring, and the season is a great time to fertilize many grasses in the hopes lawns can look their best and endure the hotter, dryer weather of summer.

Spring might mark the time when many homeowners begin tending to their lawns each year, but it’s important to recognize the significance of fall lawn care as well. Grasses vary, and homeowners are urged to identify which type of grass is in their lawn so they can ensure it gets the care it needs before winter’s first frost.

Cool-season grasses like perennial ryegrass and Kentucky bluegrass are common in various regions, and the following strategies can help homeowners with these types of grasses tend to their lawns this fall.

• Stick to your recommended fertilization schedule.

Homeowners who have been fertilizing since spring are urged to continue doing so in fall at the recommended interval.

It’s easy to forget to fertilize in fall thanks to cooler temperatures that don’t call lawn care to mind and busier schedules after school starts again and summer vacation season ends. But many fertilizer manufacturers advise users of their products to fertilize several times over the course of the year, including in fall.

Stick to the intervals recommended on the packaging of the fertilizer you’ve been using, making sure not to forget to fertilize this fall.

• Conduct a soil test. A soil test can determine if the soil is lacking any nutritive elements it needs to come back strong in spring. Certain amendments can restore pH balance if necessary and foster stronger growth when lawns come back in spring.

• Aerate, if necessary. Soil can become compacted over time, and that can cause a range of problems for a lawn. Compacted soil can make it harder for water to reach the roots of grass, which weakens grass and makes it more vulnerable to damage during adverse weather events like drought. Compacted soil also makes it harder for nutrients in fertilizer to get into the soil. Aerating is best left to professionals, particularly in larger lawns, as the job can foster strong root development when done properly.

• Remove thatch where it’s excessive. Thin layers of thatch can benefit lawns by delivering nutrients from glass clippings and leaves to a lawn. However, when thatch is excessive, it can block air, water and even fertilizer from reaching the soil. Thatch often can be removed with a rake, but lawns with especially thick layers of thatch may need to be scarified. Homeowners can take a DIY approach to scarifying or hire a landscaping professional to dethatch the lawn and remove the thatch from their properties.

• Continue to water the lawn. A cool-season grass will continue to require water into the fall. Though the lawn won’t need to be watered as frequently in fall as in summer, various lawn care professionals note cool-season grasses still need roughly an inch of water each week in fall.

• Remove leaves as they fall. Fallen leaves can affect a lawn in much the same way as excessive amounts of thatch, blocking water and nutrients from reaching the soil. So it’s best to remove fallen leaves, especially when they begin to fall in large quantities.