Plants signal their need for water: Turfgrass lies flat after being walked on, and many plants lose their shine and droop a little.
When watering lawns during hot weather, do it early in the morning. Otherwise, much of the water will evaporate from the grass before the plants get to use it. To further avoid excess evaporation use a sprinkler that produces large drops of water instead of a fine mist.
Be sure to mow the lawn before going on vacation. If you will be gone more than two weeks, arrange to have it cut while you are away. If you don’t, too much of the top growth will be removed at the next mowing. Removal of more than a third of the growth at one time weakens the plant.
If you wish to kill grass and weeds growing through cracks in patios, garden walks, or driveways, be extremely cautious. Many weed killers will leach into surrounding areas and damage your ornamentals or lawn. Pulling the weeds is the safest action.
Mac McKennon, former Smith County Master Gardener
Texas A&M AgriLife Extension Service