Answer: A thick, healthy lawn will crowd out weeds so the best approach is to rake out the bare patches, overseed, then put your lawn on a regular maintenance schedule of watering, mowing and feeding. Once the new seed is up and growing, mow consistently through the spring, summer and fall months, keeping the grass blades about 2 1/2 inches high. Mow often enough that you never have to remove more than one third of the blade height. You can leave the clippings on the lawn or bag them - either way is fine for your lawn. Plan to feed your lawn in April, June, September and late November. Lawns need deep watering once or twice a week, depending upon weather. By summer it should be thick and healthy enough to crowd out any invading weeds.
When you choose flowers, choose those that grow best under the conditions your yard offers - full sun/part sun/ full shade, etc.
Best wishes with your landscape.
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