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Grass will grow back after being sprayed with vinegar. If you’re looking for an alternative to chemical herbicides, vinegar can help you manage weeds. Use a mixture of 1 gallon of white vinegar, 1 cup of salt, and 1 tablespoon of dish soap to spray on your grass. This will kill the grass at the surface while keeping the roots intact, so it’ll eventually grow back. You’ll need to use an herbicide or manually remove the whole root system to get rid of grass for good.

Along with helping your grass grow in thicker and healthier, overseeding better equips it against hungry insects, common lawn diseases, drought, heavy foot traffic, and other foes that can weaken or kill the grass over time. By investing the extra time and money into overseeding, you’re lowering potential costs of fertilizer, pesticides, or possibly reseeding the lawn in the future.

The best time to plant grass seed depends on your local climate and whether you have cool-season or warm-season grass.

For cool-season grasses (like tall fescue), the ideal time to seed is late summer or early fall (typically August and September). During this period, the soil is still warm from the summer, but the air is cooler, creating optimal conditions for germination and root establishment before winter. There is also less competition from weeds. Spring is a secondary option, but cooler soil temperatures, the risk of a late frost, and less time for the grass to mature before summer heat can make it less successful.

For warm-season grasses (like St. Augustine), the best time to plant is from late spring through mid-summer (typically May and June), when temperatures are consistently between 75 and 90 degrees Fahrenheit.

In general, it is best to avoid seeding during winter or early spring, as cold soil and air can prevent seeds from germinating. For recommendations tailored to your specific grass type and climate, consider consulting a local lawn care professional.

Spring or early fall presents ideal conditions—cooler temperatures with consistent rainfall support hydration and growth.