Ask a super

7 home lawn care tips from golf course superintendents

August 11, 2023


Despite what you might feel, your playing partners don’t care what you shoot on the course. Your lawn works the same way. Unless it’s exceptionally good or bad, people don't think about your yard as much as you do. But you care about your lawn, and we care about ours. And that’s why we’re here.

Even if it’s unrealistic to maintain the same quality turf conditions as a golf course without a five- or six-figure maintenance budget, a couple of superintendents at top clubs in the Northeast believe you can have a healthy backyard by following a few simple tips.

To learn some of the tricks that superintendents use that we can apply at home, we talked with Jason Meersman, director of grounds at The Patterson Club in Fairfield, Conn., and Steve Aspinall, superintendent at Watchung Valley Golf Club in Watchung, N.J.

1. Take it easy on fertilizer

Both Aspinall and Meersman say that in virtually all aspects of at-home lawn care, less is more. “Typical problems people have are self-induced,” Aspinall says. “With people who are really trying to take care of their lawns, a lot of them mow the grass too low, overfertilize and overwater.”

Aspinall and Meersman agree that you only need to fertilize your lawn two or three times a year. “If you put too much fertilizer out, sure, your grass is going to look green, but your root system is probably going to be horrific,” Aspinall says. “You want the plant to be stronger, and you’re not going to get any stronger by force feeding it.”

Meersman adds that when you add too much fertilizer, you’re creating more work for yourself. “The more fertilizer you add,” he says, “the more water you might need, the more fungicides you might need, so the more mowing you’re going to do.”

2. Stick to a simple plan



Since you’re only going to be applying fertilizer a few times a year, the timing is important. Both of our superintendents recommend applying a crabgrass and grub preventative early in the season. “The only two things that can really mess up a lawn where you can’t get it back once its already happened are grubs and crabgrass,” says Meersman, who has been at The Patterson Club for 12 years.

Meersman uses a product called One and Done, which protects against white grubs and crabgrass. The fertilizer includes an insecticide, Acelepryn, as well as an herbicide, Dimension. Aspinall also uses this combination both on the course at Watchung Valley and his lawn at home. For people in northern climates, be sure to apply this fertilizer in late April or early May before the crabgrass comes up.

Both on the course and at home, Aspinall applies more insecticide in late July or early August to kill the Japanese beetles that lay eggs which turn into grubs. Meersman uses gypsum and lime several times throughout the year. “Gypsum will help make the nutrients that are already in the soil plant available, and then the lime will help open up the soil a little bit for root growth,” Meersman says.

3. Wash fertilizer into the soil



Simply dropping fertilizer on your lawn is not enough, as it needs to be washed into the ground to have its full effect. Both of our superintendents drop their fertilizer before a rainstorm, which flushes the product down into the soil. If there are no storms in the forecast, make sure to run your irrigation system or hand water your lawn right after putting the product down.

“You have about a week, a week-and-a-half window where it needs to be watered in by, or it starts to degrade in the sunlight and becomes less effective,” Aspinall says.

4. Be careful when applying product

One of the most common mistakes Meersman sees homeowners make is not applying products correctly. “I have a neighbor who used a drop spreader when they were supposed to use a broadcast spreader, and they killed a lot of grass in their yard,” he says. To avoid misapplying fertilizer, be sure to read the bag, where most products will have instructions that say what spreader to use and what setting to put it at. Meersman also explains that you need to be very careful to apply product evenly across your lawn, as missing spots or overlapping in one area can ruin the grass in those places.

5. Mind the water

Remember, less is more. “You see a lot of people who have their sprinklers on every single night no matter what,” Aspinall says. “I don’t even do that on a green, which I’m cutting at a tenth of an inch, so why are you doing it in your yard? Your yard doesn’t need to be that wet.”

Aspinall and Meersman say that instead of watering your lawn each night, opt for short sessions every few days. Aspinall recommends a heavy watering for 20 minutes every couple of days, adding that it’s important for the water to penetrate into the ground, so it’s better to go heavy and for less time.

“The more water you have, the more saturated your soils are, and the less happy your plants are going to be,” Meersman says. “If somebody is running their irrigation system for 20 minutes every night, most likely they’re getting way too much water, and that can be detrimental." He adds that the longest he’ll water the greens at Patterson is six minutes at a time, not including after an aeration.

6. Keep your grass tall (but not too tall)



It’s important to find the middle ground with your grass length—not quite as short as a fairway but not as long as U.S. Open rough. “Two-and-a-half to three inches is ideal,” Meersman says. “And the less light or the more shade you have, the taller your grass should be. Grass is basically a solar panel, so the longer it is, the more panels it has.”

In typical conditions, mowing about once a week is all you need. In drier, hotter months like July and August, Meersman sometimes will only mow his lawn once a month. “It definitely doesn’t want the stress of getting a haircut,” he says.

Aspinall adds that it’s important to keep a routine and not let the grass get too long before you cut it down. “You need to constantly be cutting the grass to train it to be at whatever height you want it to be at,” he says. “It’s like a putting green. You can’t mow a putting green once every three days and expect a good product.”

Your specific mowing routine takes a bit of feel and will vary throughout the season. Find whatever frequency you need to keep your lawn around three inches.

7. Aerate every two years

Though Meersman says you don’t need to follow a rigid and frequent aerification schedule like golf courses, he says you should aerate your lawn once every two years. Doing so will relieve compaction and create channels for even water distribution, helping to maintain good turf health. “I call it fluffing the pillow,” he says. “It relaxes the soil a little bit.” Though you likely don’t have access to the large aerifying machines used at courses, smaller versions available for rent at hardware stores do a decent job, Meersman says.