
Overseeding is most commonly done by courses that use bermudagrass, which goes dormant during winter months. In the fall, a bermudagrass golf course overseeds with, for example, ryegrass seed on top of the bermudagrass. Then, as the bermudagrass is going dormant for the winter, the ryegrass grows in.
Full Answer
What is overseeding in golf?
Various types of grasses might be involved in overseeding, but the process is most commonly used to switch a golf course over from a warm-season grass to a cool-season grass, and back again.) Overseeding thus keeps a growing turfgrass available for golfers to play on.
Can golfers tell the difference between turf colorants and regular overseeding?
The majority of golfers could not tell the difference between fairways treated with turf colorants and the conventional overseeding practices. Low-handicap players at the course especially preferred the colorant-treated playing surfaces.
What is the difference between aeration and overseeding?
Overseeding often involves putting the seed down along with a thin layer of sand, then allowing the new grass to grow in for many days without being cut. So overseeding (which is sometimes done in conjunction with aeration) can, for a period of a week or 10 days or so, result in very "hairy" greens, fairways and tee boxes.
Do you overseed Bermuda grass?
All rights reserved. Overseeding bermudagrass fairways and primary playing areas remains an important part of business in operating a golf facility in the southwestern U.S. Only a decade ago, many facilities designed their business model around a seven-month cycle from November through May.

How do you overseed a golf course?
Overseeding often involves putting the seed down along with a thin layer of sand, then allowing the new grass to grow in for many days without being cut.
How do you overseed properly?
How to Overseed a Lawn in 8 Simple StepsSupplies Needed to Overseed a Lawn.Step 1: Dethatch and Aerate the Lawn (If Necessary)Step 2: Mow the Lawn Short.Step 3: Rake to Remove Debris.Step 4: Add Enriched Topsoil.Step 5: Spread the Grass Seed.Step 6: Fertilize the New Grass.Step 7: Water Your Lawn Generously.More items...•
When should I reseed my golf greens?
The Time To Seed Is Now September 6, 2019 By Bob Vavrek, regional director, Central Region. Once creeping bentgrass germinates, three to four months of good growing weather are required before a new putting green can be opened for day-to-day play.
How do you overseed existing grass?
3:4912:49Your browser can't play this video. Learn more - YouTubeYouTubeStart of suggested clipEnd of suggested clipDoing the core aeration. Process now core aeration can be done yourself go to a rental store maybe aMoreDoing the core aeration. Process now core aeration can be done yourself go to a rental store maybe a home depot. And pick up a machine. And if you've never done this before just a bit of a warning it
Do I need to aerate before overseeding?
The most important step you can take before overseeding your lawn is aerating your soil. No matter what seed you use, they can't germinate in compacted soil devoid of water, nutrients, and sufficient air exchange. That's why it's crucial to aerate your lawn before starting the overseeding process.
Can you overseed too much?
Ignoring recommended seeding rates Don't overdo or cut corners. Too much grass seed causes undue competition for resources such as light, water and nutrients, and grass seedlings struggle as a result.
Why do Arizona golf courses overseed?
most golf courses in the west and southeast have to plan when they undertake a major transformation. In Tucson and other warmer climes, the cooler winter weather causes the Bermuda grass to go dormant. It's loses all of it's color, looking more like cut straw, than luxurious turf. Hence, the need to overseed.
How do you seed a new golf green?
Let's take a look at how you can build your very own putting green.Real or artificial. ... Step 1: Choose a location. ... Step 2: Get the soil ready. ... Step 3: Add drainage. ... Step 4: Separate the green. ... Step 5: Place the hole. ... Step 6: Plant your seeds. ... Step 7: Fertilise, water, mow, repeat.More items...•
How do you overseed with ryegrass?
0:323:46How To Overseed Bermuda Grass With Perennial Ryegrass - YouTubeYouTubeStart of suggested clipEnd of suggested clipResults when over seeding Bermuda grass with perennial ryegrass daytime temperatures should be inMoreResults when over seeding Bermuda grass with perennial ryegrass daytime temperatures should be in the upper 70s. And nighttime temperatures should be 55 degrees or cooler. Before.
Can I just throw grass seed down on existing lawn?
Can you just sprinkle grass seed on top of your existing lawn? While it's possible to simply sow the new grass seed over your existing lawn, taking the time to prepare your lawn beforehand will increase the likelihood of seed germination and improve your end result.
Will grass seed grow if you just throw it on the ground?
Let us start with the simple question, will the seed grow if it is just thrown on the ground? The simple answer is, yes. Beyond just throwing the seed out into the lawn and not performing any grass maintenance there is a whole world of lawn care. While the seed is one of the most resilient out there.
Can I put topsoil over grass and reseed?
Adding soil over grass can be another effective form of repairing a lawn. It is possible to dump new soil over top of what you have, and prepare it for sod or seed. This option will save you money on excavation costs of removing the old soil and grass.
What is overseeding in golf?
In golf, "overseeding" refers to a maintenance process on golf courses in which grass seed is spread on top of the existing grass to promote new growth or to swap out seasonal turfs, replacing one type of grass with another . Overseeding is most commonly done by courses that use bermudagrass, ...
What is topdressing in a green?
If the green in question is aerated, the topdressing consists of a mixture of sand, soil, and fertilizer. If the green is overseeded, the topdressing consists of a mixture of sand, fertilizer, and seed.
How long does it take for grass to grow without cutting?
Overseeding often involves putting the seed down along with a thin layer of sand, then allowing the new grass to grow in for many days without being cut. So overseeding (which is sometimes done in conjunction with aeration) can, for a period of a week or 10 days or so, result in very "hairy" greens, fairways and tee boxes.
Do putting greens turn brown?
Those dormant grasses turn brown or tan in color, however—they look dead, in other words, even though they aren't—and many golfers and golf course staffs don't like the cosmetics of brown putting greens.
Why does Guilfoil oversee the yard?
The calculus can get complicated. At his own home, Guilfoil overseeds the yard, but not because he wants to. It’s because he lost an argument with his wife. “Personally, I’d rather save the water, the money and the hassle, and just let the grass go dormant for the winter,” Guilfoil says.
What is ryegrass overlay?
An overlay of ryegrass keeps courses green while providing purer playing conditions throughout the winter. It also helps protect the dormant Bermuda at a time when the grass is vulnerable to damage. “Divots and cart traffic are the big problems,” Guilfoil says.
Is Bermuda greens healthier than ryegrass?
The Bermuda greens up faster and provides a healthier playing surface in the longer run as well. 4. The Benefits of Brown. Not only does dormant Bermuda require less maintenance than overseeded ryegrass, it also provides a firmer, faster playing surface.
Does Bermuda grass need iron?
That darker shade helps the grass absorb more of the sun’s heat (some superintendents also give dormant grass a dose of iron to help keep it green, with the same beneficial heat-absorbing effect). In the cool of winter, Bermuda needs all the warmth that it can get.
Can you paint grass greens?
Painting the grass green, as many golf courses do, is not a viable option for most homeowners, Guilfoil says, because the pigmented products are hard to get a hold of and tricky to apply. “It can be a difficult, messy gig,” he says. If you choose to overseed, Guilfoil warns against some common mistakes.
Do Bermuda lawns need more maintenance than dormant lawns?
Overseeded lawns also require more maintenance than dormant lawns. And Guilfoil says that many homeowners fail to stay on top of that work, letting their lawns grow too long. That creates a problem in the spring when the Bermuda tries to reassert itself, only to be overshadowed by the shaggy ryegrass.
Why is overseeding important?
Overseeding in favourable conditions is an important consideration to ensure successful germination and establishment. Germination will only commence when sufficient temperatures are present and adequate moisture is available for absorption. The following points are paramount:
What is a tight green sward?
tight, dense green sward is a very competitive environment for young seedlings to successfully establish in. Creatingspace in the turf canopy is an important factor to consider, particularly if the long-term goal is one of species exchange. Doing this in the middle of the playing season may not be popular with golfers, but it will dramatically speed up a species exchange programme if conditions are right for the introduced species. It can be achieved in two main ways:
How deep should I sow bent grass?
Recommended sowing depths are in the BAR Range catalogue; please remember they are BELOW any thatch layer, for example a recommended sowing rate depth of 6-8mm means an actual sowing depth of 21-23mm if you have 15mm of thatch. In terms of species, bent grass should be sown at 2-4 mm and red fescue at 8-12mm below the thatch; it is therefore generally recommended to oversow with EITHER bent or fescue (rather than both together) in a single application.
Do you top dress after overseeding?
It is common to top-dress immediately following overseeding but this should not be considered an absolute requirement. If using top dressing as part of your thatch control programme, do not apply too thickly over 5the newly sown seed or emerging seedlings.
Features - Real Science
Strategies to prepare bermudagrass fairways for overseeding in the Desert Southwest have changed dramatically over the past five years.
The simplest approach is often the best
It seems that at least 50 percent of the golf courses that overseed have a history of fair to poor bermudagrass recovery in the summer. It is these facilities where the simplest overseeding approach makes the most sense.
Burn-down herbicides make their mark
This idea has been around for many decades but has seen a resurgence of late. As recently as five or six years ago, it was common for golf facilities to spend more than $10,000 to haul away green waste, or organic debris, generated from aggressive fairway renovation prior to overseeding.
Sand topdressing replaces scalping and verticutting
This strategy does not involve any aggressive mechanical preparation or herbicide application but does provide the facility with a plan that will continue to improve overseeding, bermudagrass transition and golf course playability for many years to come.
How long does Kistler keep golfers off the fairways?
He doesn’t have to inconvenience golfers by keeping them off the fairways for seven to 10 days, like when the ryegrass was germinating, or when he watered the cool-season grass during the day.
Do golf clubs oversee their courses?
To provide colorful aesthetics, some clubs choose to overseed their courses. However, for some superintendents that annual chore is becoming smaller in scope, if not vanishing altogether.

Aesthetics of Overseeding
Overseeding's Effect on Play
- Overseeding often involves putting the seed down along with a thin layer of sand, then allowing the new grass to grow in for many days without being cut. So overseeding (which is sometimes done in conjunction with aeration) can, for a period of a week or 10 days or so, result in very "hairy" greens, fairways and tee boxes. Because greens with uncut grass can be difficult to putt on, so…
Emerging Alternative to Overseeding
- Overseeding a golf course requires time, labor and money, and inconveniences golfers during the grow-in times. Is there a better alternative? There might be one emerging. Some golf courses have experimented over the years with coloring, or painting, their dormant turfgrass, rather than overseeding it. It sounds kind of silly, but as the quality of the "turf colorants" has improved, and …
The Seed Mixture Put Down Is called 'Topdressing'
- "Topdressing" is a golf course maintenance term that describes a layer of material put down on a green for fairway following either aerationor overseeding. If the green in question is aerated, the topdressing consists of a mixture of sand, soil, and fertilizer. If the green is overseeded, the topdressing consists of a mixture of sand, fertilizer,...