Yes, brown grass can become green again.
However, brown grass does not necessarily mean the lawn is dying. This blog will explain the differences between dead and dormant grass, why grass becomes brown, and the risks of overwatering your grass.
In some cases, “dead” grass can benefit from a fresh cut; you can try mowing the whole lawn and leaving a thin layer of the grass clippings behind. Grass can act as its own fertilizer since the blades already contain the nitrogen the roots need.
Give the lawn a generous feed with autumn fertiliser so that the grass re-builds depleted carbohydrate levels before the winter. Spike the lawn to ensure penetration of further rainfall. Initially the lawn will be hard but even pricking the surface will help. More spiking - you can't do too much.
It's no fun when you break out your shorts and sunscreen to enjoy your backyard and discover prickly, brown grass has overtaken your lawn. Thankfully, your dead grass will probably grow back with the proper care if you've caught the problem quickly (within about 3-5 weeks).
Problem: Lawn Has Yellow, Brown, or Dark-Green Streaks
Finally, grass that's over-fertilized will be burnt and turn brown. To fix the problem, start by watering the damaged lawn well to encourage the grass to grow.
Raking a matted lawn can be very important after an intense winter, and you want to target the areas of your lawn that are brown and matted. This technique will help prevent dead areas and encourage healthy growth for the upcoming summer.
Follow Watering Schedule
That can make it difficult to know if the grass is still alive. You can get a better idea of what's causing the brown color by following a consistent watering schedule. Watering will help dormant grass become green again, while dead grass will remain brown.
If the grass is too wet, you shouldn't mow and if it's too dry you shouldn't either. Remember, mowing is a stressful event for your lawn. If you mow when it's already under stress, such as during dry spell or drought, then it will become even more stressed. You don't like to be stressed and neither does your poor lawn.
It's your lawn's way of conserving energy and water, Mann explains. The grass will break dormancy and begin growing again when the temperatures and/or rainfall levels become more ideal for it. Note that when dormancy ends, grass leaves that have turned brown won't revive, but new leaves will appear.
You want to wake up your dormant lawn right before the growing season. For cool-season grasses, you can wake up your lawn in early fall or early spring, as those are two very important fertilizing times in your lawn care. Your lawn needs to be alive, awake, and growing to maximize the effects of fertilizer.
If your grass is turning brown despite watering, it's possible that you may have a problem with disease, caused by microscopic living organisms. These include bacteria, fungi, and nematodes, among others.
Drought stress or summer lawn stress is one of the common reasons why your healthy lawn turns brown. Your grass might just be responding to hot weather. The grass may green up when cooler weather returns. Also, take care when you mow.
If the plants pull out from the ground easily, they're probably dead. If the roots hold fast when pulled, the plants are dormant. You will also see the difference when you start to water or when rain returns as moisture will revive brown grass. However, it will not bring dead grass plants back to life.
The grass plants may appear dead to the naked eye, but deep inside the plant, there is a small area (called the crown) that is still alive. Once this crown gets moisture again, it will come to life and the turf will green up in 10-14 days. Grass can remain dormant for up to six weeks without any adverse effects.
Like any plant, grass reacts to summer's high temperatures and lack of water with wilting, browning, or even death. Here's how to detect drought stress: Locate a brown patch, and pull on the grass. If it won't pull easily from soil and is firmly rooted, it's likely brown due to drought.
For example, fertilizers are great for providing your grass with the nitrogen, phosphorus, and potassium it needs to thrive, and watering your lawn is essential for maintaining health. However, too much fertilizer, too much water, or too much of both can actually cause browning.
Just like any other plant, your grass needs sunlight and moisture in order to grow. The harsh temperatures of summer can wear down your lawn, drying out healthy grass, and causing it to turn brown. The hot temperatures and lack of moisture means your lawn isn't getting the nutrients it needs to thrive.
However, too much fertilizer can turn grass yellow or brown, making it look as if it has been burned. This condition is called fertilizer burn—and it's one of the most common fertilizer mistakes home gardeners make.
While you'll still need to plan on simply giving the grass more (WARMER) TIME to green up, a good mowing certainly won't hurt, at any rate.