10 yard projects to complete in September—experts explains

Person using a rake to rake fallen leaves in a yard in autumn.
(Image credit: Getty)

The first day of fall is Sunday, September 22—although September 1 is known as the meteorological fall. In any event, September is a welcome change from the dog days of summer. And the more bearable weather is an opportunity to engage in several fun projects that can make your yard more attractive.

It's also the time for lawn maintenance, and one of the best lawn mowers can help with that. You'll also find use for other tools such as pruners and hedge trimmers which will trim back the foliage which may have turned a little wild over the past few months.

To help hone in on the yard projects to complete in September, I caught up with a couple of experts who share their advice on what to tackle next outside.

10 yard projects to complete in September

1. Mulch fall leaves to provide nutrients

The fall season is a good time to think about prepping your garden for next year’s growing season. And Christopher S. Raimondi, CEO and president at Raimondi Horticultural Group in Ho-Ho-Kus, New Jersey, recommends mulching you fall leaves as one of the best ways to prep. “When you mulch your leaves, you are essentially recycling them back into your garden,” he says. “The decomposed leaves will provide your soil with rich nutrients and improve its structure—which can lead to healthier plants and a more productive garden next year.”

This is something that the BLACK+DECKER 3-in-1 Electric Leaf Blower, Leaf Vacuum and Mulcher (which is $94 on Amazon) could help with.

headshot of Chris Raimondi for top ten reviews
Christopher S. Raimondi

Christopher S. Raimondi got his start in Horticulture at the age of 12, after becoming the top salesman for a local plant nursery during a Boy Scout troop fundraiser. He now shares over 50 years of horticultural knowledge with clients, as well as his students at The New York Botanical Garden and Bergen Community College, where he is an Adjunct Professor of Horticulture. He has held numerous volunteer industry positions, including serving as a Board Member, at National Association of Landscape Professionals (NALP).

2. Build a fire ring or fire pit for family gatherings

A fire ring or fire pit can extend your outdoor time into cooler seasons and they’re multifunctional as well. “A fire ring or fire pit can be a wonderful addition to your backyard, provide a focal point for family gatherings, and be used for cooking, roasting marshmallows, or just warming up on a cool evening,” Raimondi says. You can purchase a pre-made fire pit, and there are plenty of types to choose from. However, Raimondi notes that building one from scratch using stones or bricks could be a fun DIY project.  

Solo Stove Bonfire 2.0 being tested in writer's home

(Image credit: Future)

3. Plant spring flowering bulbs now

Admittedly, spring is a long way off. However, you need to start planting spring flower bulbs (like tulips, daffodils, and hyacinths) in the fall so they can bloom in the spring. Fortunately, Raimondi says planting bulbs is relatively easy—even if you don’t have a green thumb. “Simply choose a location with good drainage, dig a hole to the appropriate depth, place the bulb in the hole with the pointy end up, and then cover it with soil.”

4. And plant late-season vegetables now for late fall harvest

Although we’re in September, this doesn’t mean it’s too late to plant vegetables. Raimondi says you can definitely have a late fall harvest. So, what can you plant this time of year?  “Hardy vegetables like kale, broccoli, and Brussels sprouts, as well as root vegetables like carrots and beets.” And if you plant them now, he says you can extend your gardening season and enjoy fresh produce well into the fall.

5. Divide and transplant perennials now

Perennials are plants that come back year after year, and can include chrysanthemums, hardy hibiscus, daylily, black-eyed susan, dianthus, allium, and other plant varieties bursting with gorgeous color. However, Raimondi warns that over time, they can become overcrowded and may not perform as well. “To keep your perennials healthy and vigorous, consider dividing and transplanting them,” he advises. “This involves digging up the plant, splitting it into smaller sections, and then replanting these sections – and depending on the plant, this task can be performed in early fall or early spring.

Image of raised flower beds

(Image credit: Quickcrop)

6. Plant annuals for seasonal color impact

Unlike perennials that return year after year, annuals complete their life cycle in one year. Examples include apple blossoms, pansies, grape myrtle, angel whiteface, and African daisy.  Raimondi explains that annuals are often used in garden design because they can provide bold, seasonal color. “Consider planting annuals in your garden to create a dynamic and colorful display, which could include summer annuals like petunias and marigolds or fall annuals like mums and pansies,” he says.

7. Add pumpkins, gourds, cornstalk, and hay for entrance accents

September is also a great time to start decorating your entrance with seasonal accents. “This could include arranging pumpkins and gourds on your front steps, tying cornstalks to porch columns, or placing hay bales in your yard,” Raimondi says. 

Using these natural elements creates a warm and welcoming atmosphere, which also contributes to curb appeal. In addition, Raimondi says they celebrate the bounty of the season.

8. Remove leaf litter from the lawn

“If your yard is buried in leaves, remove most of them so light and air can reach the grass,” says Lori Johnson,” president of The Grounds Guys, a Neighborly company. “It’s okay to leave some leaf litter behind to give pollinators a place to nestle over the winter.”

While you've got the rake out it could also be a good time to rake the garden beds. However, Johnson advises wait to do this step until after you’ve completed any jobs with the pruners. "That way, you don’t have to tidy up the beds twice," she explains. "Watch out for drip irrigation systems and sprinkler heads while raking and doing general clean-up."

Lori Johnson headshot
Lori Johnson

Lori Johnson was named president of The Grounds Guys, a full-service grounds care company offering commercial and residential landscape management services, in March 2023. She is responsible for the overall leadership and growth of The Grounds Guys throughout the US and Canada

9. Dethatch and possibly aerate the lawn

In early fall, Johnson also recommends removing the yellowish-brown thatch from your grass. "If the soil is also compacted, aerate it," she says.

One of the perfect tools to help with this is something like the Greenworks 14in Cordless Dethatcher and Scarifier which will remove thatch and aerate the soil.

Greenworks 40V 14in Cordless Dethatcher / Scarifier being tested in writer's home

(Image credit: Future)

10. Fertilize the lawn

Johnson also ponts to early fall as the best time to fertilize your lawn. "Before adding fertilizer, you may want to test the pH of your soil to see if it’s lacking in nutrients," she advises.

Scotts Turf Builder Triple Action Lawn Fertilizer, 11.31 lbs. 4,000 sq. ft | $34.97 at Home Depot

Scotts Turf Builder Triple Action Lawn Fertilizer, 11.31 lbs. 4,000 sq. ft | $34.97 at Home Depot

This triple action fertilizer from Scotts Turf Builder kills weeds, prevents crabgrass for 4 months and feeds to build thick green lawns. It's ideal for use in Spring or Fall. One bag of 11.31lbs will cover 4,000sq.ft. If you need to cover a larger area, a larger 33.94lbs bag is available.


For more ways to prepare the yard during September, check out the best outdoor furniture deals to create a sitting space for less and these lawn mower deals to upgrade your mower (if you need) for a discount.

Terri Williams
TTR Contributor

Terri is a freelance writer living in Birmingham, AL. She has tested hundreds of products, including kitchen appliances, vacuums, bedding, furniture, luggage, and tech gear. Terri has bylines at Architectural Digest, Forbes, Popular Science, CNN Underscored, NBC News, The Daily Beast, USA Today, and US News & World Report, as well as TechRadar, Homes & Gardens, and Tom's Guide.