WTH is the big, light green grass that grows in my lawn !!
Everyone has heard the phrase "grow like weed" and it is fairly safe to say that this phrase is based on the weed known as nutsedge, nutgrass or watergrass. Nutsedge usually grows quickly and higher than the average lawn grass, which is a thorn in the side of homeowners.
What is nutsedge?
It is a grassy weed that actually belongs to the sedge family. Nutsedge is easily recognized by its triangular blades, which are often referred to as light green or light green. Nutsedge's root system consists of several fibers called rhizomes and produces tubes. Each bulb has the ability to produce a new plant, which is why it is important that it is never pulled.
Nutsedge is one of the most difficult, if not the most difficult weeds to control. In contrast to crab grass, nutsedge cannot be prevented before emergence or through previous herbicide applications (weed control). Nutsedge is treated as soon as it emerges, which can significantly affect the timing of lawn care applications.
When it comes to herbicide treatments, most products on the market only suppress growth and never really kill or eliminate it. If a herbicide appears to have killed the plant, it may have killed that plant, but it has not killed the root system or the plant that produces subterranean tubes. Herbicides to suppress nutsedge often require multiple uses, but never get to the bottom of the problem.
There are not many ways to kill nutsedge. One way is to use a non-selective herbicide like round-up. Rounding up not only kills the nutsedge, it also kills the grass. This is a better option for landscape beds than for lawns. Another way to kill nutsedge is to research and hire a lawn care company that uses one of the newer products on the market and actually kills the nutsedge instead of suppressing it. At TurfGator we have been using a nutsedge killing product since 2013.
Nutsedge thrives in damp and humid weather and prefers sunshine over shade. In fact, it is difficult to see it grow in a shady area. Areas of lawn with stagnant water or poor drainage would be the first areas of concern when it comes to predicting where nutsedge will grow. Proper drainage is ideal in the fight against nutsedge.
The thicker the lawn, the less space it must have for proper drainage. Annual aeration and sowing is strongly recommended to continuously fill areas that may be a bit bare or where weeds used to be, but have been killed since. This not only helps to keep nutsedge in check, but also prevents other annoying weeds from appearing in the lawn.
sum it up
The next time the lawn is mowed in summer and the walnut is twice the height of the rest of the grass, think about what's going on in this area and monitor these areas for stagnant water, drainage problems, and thin spots in the lawn.
It is always a good idea to contact a lawn care professional and ask questions. Take a look around, ask friends or family, and research the Better Business Bureau for a company you can trust.