- Broadleaf weeds such as clover, and other weeds such as crabgrass, are difficult to control in Southern lawns. You'll need to be persistent in your attempts to kill the weeds, repeatedly spraying on an herbicide made for Southern lawns or for the specific type of weed(s) you're trying to kill.
- Apply weed killer on a sunny day, and when the weather forecast is for several days of sun. This helps ensure that rain doesn't wash away your weed killer after you've carefully applied it. Spot-apply weed killer on troublesome weeds and allow the weed killer to dry completely. Repeat once a week for 3 weeks, or until they die.
- Read the labels on the herbicide bottle. This will tell you specifically when to use the herbicide. Herbicides vary in when they can be used, and in the types of weeds they can be used on. For example, some herbicides are effective only during a certain season, while others work only within a specific temperature range. This is why using an herbicide made for Southern lawns is a good option.
- Usually, Southern lawns should be fertilized once or twice a year--enough to help ensure that the grass is fortified but not so much that regrowth of weeds is encouraged. If you fertilize only once a year, do it in fall. This will help set up your lawn for a fruitful spring.
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