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Jeff Schley

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Grass
« on: January 30, 2018, 06:07:52 AM »
Team,

Sorry I'm not talking about recently legalized states that have recreational use!  ;)

I was searching for a thread or resource on here, seeing as this is the enlightened group about golf course architecture, for the types of grass used on golf courses and why it maybe preferable in different parts of the world. I did some searches online, but I'm sure many here have years of experience and knowledge to chime in about their experience and types of grass with their positives and negatives.  I have listed some information found below, which is just internet info.  Please let me know what to add and I will or correct it as it has been from a hodgepodge of different sources. Poa Annua I'm not sure if I should put it alone or what do you think?

The real question is where to use what and what the positives and negatives.  Thanks all

 
Bermuda

Among the most time-tested and well-known golf course grasses, Bermuda grass is used in warm-weather golf locations, including Florida and Georgia, according to Golfways. Bermuda grass withstands heat, can be mowed low, repairs quickly and is drought resistant. On the negative side, Bermuda grasses will die back in colder weather and may be overseeded with perennial ryegrass to fill in holes. The tees and fairways at Augusta National are Bermuda.

Bentgrass

Available in several varieties, bentgrass is found on golf courses in cool summer or coastal locations, including in the North, Mid-Atlantic, coastal California and the Midwest. Bentgrass is a member of the poa family and is considered the best grass for golf course greens in the South, according to Aggie Horticulture. Bentgrass is used on the greens at Augusta National. It has a fine texture and can stand up to constant and low mowing.

Fescues

A large family of grasses which can be used on all areas of a golf course, most usually in cooler climates. They adapt well to less fertile conditions and although some varieties are appropriate for close mowing they are most often distinguishable as tall rough grasses, particularly on links courses.

Kikuyu

A grass native to Africa but also very common in other parts of the world including places like Australia and the United States. Kikuyu is very much a warm season grass with a broad leaf blade and very thick, extensive rhizomes and stolons….it thrives in the heat and goes dormant in the cold. Golfers love playing off the spongy lies you get on the fairway but fear playing out of this grass when cut as rough – in fact golfers have been known to break their wrists playing out of kikuyu rough.

Perennial Ryegrass

A longtime favorite for use on golf courses, perennial ryegrass can be found in nearly any cool-summer region. Perennial ryegrass is used on the tee boxes and fairways at several of the Pebble Beach golf courses and is used to overseed the Bermuda grass on the tee boxes and fairways at Augusta National. Ryegrass has a fine texture and is a clumping rather than running grass. This grass must be heavily planted for tight, hole-free turf.

Paspalum

A warm season grass which is tolerant of salt water and heat. It can be used for tees, greens, fairways and roughs and provides a very dark green color.

Zoysia

Zoysia can be used in a wide range of climates, with the exception of desert or cold western locations. Because of its range, zoysia is a popular choice throughout the country. This grass, which is a member of the poa family, is deep-rooted, clumping and holds its color well. The blades are fine and may be mowed to 3/4 of an inch. Zoysia is often used on municipal courses.
"To give anything less than your best, is to sacrifice your gifts."
- Steve Prefontaine

Kyle Harris

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Re: Grass
« Reply #1 on: January 30, 2018, 07:48:35 AM »
Not sure where you got this but it is loaded with errors.

Bermuda doesn't "die back" in the winter: It goes dormant. This is like saying deciduous trees "die back" when they lose their leaves. Different varieties show different drought resistance. 

Bentgrass is in the Family Poaceae, which is not to be confused with the more-famous genus Poa, as in Poa annua. For what it's worth, the Bentgrass genus is Agrostis spp. Not sure why anyone would say this is the best grass for greens in the South, either.

Fescue is also in the Family Poaceae, as are all turfgrasses. More correct to say this is a large Genus of grasses. It might be important to note that "Fine Fescue" is the whispy, taller mown variety found in less-maintained areas on golf courses, and "Tall Fescue" is more like Ryegrass.

Interesting that the Bluegrass genus (Poa spp.)is not even mentioned.

I understand that this information is written for the laymen, but differentiating phylogeny between the Family Poaceae and the Genus of different varieties like Agrostis spp., Poa spp., and Lolium spp. is important to have a more-informed discussion.

All of these varities have their pros and cons, and it's really about the level of management the stakeholders in the club wish to have. Some of the best greens in the world (Oakmont!) are Annual Bluegrass, Poa annua, which is a four-letter word to others.

Most of the trade-offs are between Height of Cut (HOC), fertilizer requirements, and water requirements. Competition with undesirable plants and season length are other factors.
« Last Edit: January 30, 2018, 08:06:57 AM by Kyle Harris »
http://kylewharris.com

Constantly blamed by 8-handicaps for their 7 missed 12-footers each round.

Thank you for changing the font of your posts. It makes them easier to scroll past.

Jeff Schley

  • Karma: +0/-0
Re: Grass
« Reply #2 on: January 30, 2018, 01:33:42 PM »
I know one of the articles was from Golfweek and a few others to add in some pieces.  Thanks for the info and hope to get more feedback to help complete the picture.
"To give anything less than your best, is to sacrifice your gifts."
- Steve Prefontaine

Tom_Doak

  • Karma: +2/-1
Re: Grass
« Reply #3 on: January 30, 2018, 02:14:00 PM »
Jeff:


Trying to reduce golf course agronomy to one thread on Golf Club Atlas underestimates the subject by a considerable degree.


I know just enough about grass to be dangerous; there are maybe 50 participants here who know way more about it because they deal with it every day, and 1450 others who know a lot less.  A lot of the "grass talk" here is based on misinformation, sales pitches, and general grill room b.s.




The most basic info is that there are cool-season grasses and warm-season grasses.


Cool-season grasses [including bentgrass, fine fescue, bluegrass, and ryegrass] are pretty winter-hardy, but struggle to survive when temps get above 80-90 degrees in summer, so you aren't likely to see them in Saudi Arabia. 


Warm-season grasses [including bemuda aka couch grass, paspalum, zoysia, kikuyu, and tall fescue] will not only withstand but thrive in hot weather, so long as they have sufficient water, but go dormant when the temperature drops in winter, and may even die in an extended freeze.


Sometimes, dormant warm-season grasses are overseeded with cool-season grasses in the winter to present a green playing surface; when it gets hot again the cool-season grass dies off and the warm-season grass comes back.


Poa annua is a cool-season annual grass that exists everywhere.  It will germinate when it sees water, but it thrives in climates where it's not hot enough or droughty enough to kill it ... otherwise, it crowds out other grasses, only to die off in a drought.  Lots of northern courses have big patches of Poa annua, so that superintendents are afraid to let it die.

Ira Fishman

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Re: Grass
« Reply #4 on: January 30, 2018, 05:01:21 PM »
Tom,


I am surprised a bit by your response because I was under the impression that the architect has quite a bit of control over the grasses used on a course.  Am I misreading your post?  If he or she does not, why not?


Thanks,


Ira

Tom_Doak

  • Karma: +2/-1
Re: Grass
« Reply #5 on: January 30, 2018, 09:48:25 PM »
Tom,

I am surprised a bit by your response because I was under the impression that the architect has quite a bit of control over the grasses used on a course.  Am I misreading your post?  If he or she does not, why not?



We have control, as much as we want to have control.  But we should also know when to yield to the experts, and especially to the guy who's ultimately going to take care of the grass.  Because if he's not convinced that my choice is the best one, he can easily prove me wrong.

Randy Thompson

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Re: Grass
« Reply #6 on: February 01, 2018, 10:04:23 AM »
In most cases tall fescue will adapt to the warmer climates if managed well but is considered a cool season species.

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