Those dry, yellowish lawn spots can be a real eyesore when the rest of your lawn is looking green and healthy. While some of those spots may be caused by weather or seasonal changes, they can also be caused by pets, insects, or lack of minerals and nutrients in the soil. Try the following steps and methods to improve your grass and bring those dry patches back to the healthy, green, luster they long to be.
1. Mow the Lawn
Before you start troubleshooting the spots on your lawn that aren’t green, do a little research to make sure you’re cutting your grass at the correct height. Certain types of grass can be cut too short, which damages the blades and causes them to turn yellow. Try adjusting the height of your mower blades so that the grass isn’t cut as short as it normally would be, and see if this corrects the problem. These damaged patches should begin to improve once they grow out and are trimmed at the correct height.
2. Change Your Watering Routine
The discoloration in patches of your lawn can sometimes be caused by the watering schedule in place. Especially during extreme weather such as hot summers, grass can be damaged by drought or watering at certain times of the day. Try watering the grass late in the evening or early in the morning if it has been a particularly hot summer, as wet grass in extreme temperatures can burn. Make sure to water the grass thoroughly at least once a week to get the moisture deep into the soil, especially in areas that are at a slant, where water has a difficult time soaking in instead of running down the slope. Watering the grass deeply can also help get rid of certain types of bugs that may otherwise feed on your grass.
3. Test the Soil
Before you take serious steps to fix your lawn spots, make sure that the discoloration isn’t being caused by something as simple as a pet, animal, or seasonal changes in the weather. If you have determined that your grass is not suffering due to any of these ailments, the easiest place to start is by testing your soil’s pH and mineral levels. This will tell you if your soil is too acidic or alkaline, or if it is lacking any particular mineral. Testing kits can be purchased at any lawn or garden store. Use a do-it-yourself kit to find any imbalances or deficiencies in the soil your grass grows from.
4. Feed Your Grass
If your soil tests come back showing that your grass needs a little extra love and care, give it what it needs. For grass that is lacking in iron, it’s time to fertilize the lawn. Fertilizer helps produce the chlorophyll in the grass, which is the compound that makes plants green. When fertilizing, make sure that you choose a fertilizer that has equal parts of all the important minerals--typically nitrogen, potassium, and phosphorus. For serious iron deficiency, ferrous sulfate can be mixed with water and be sprayed on the blades to improve the condition of the grass.
5. Check for Bugs
If you've tried all the above tests and methods, but your grass is still dying in random patches, it's time to consider that perhaps pests could be the cause of your grass ailments. In this case, it may be time to purchase a treatment, such as an insecticide. If you plan to treat your grass with chemicals, however, make sure to inspect your grass carefully and thoroughly to determine that the cause is insects and not a fungus or any of the issues mentioned above.