The best time to water your garden in summer is from 6 am to 10 am—before the heat of the day sets in, giving your plants plenty of time to drink up and any moisture on the leaves to dry off before nightfall.
A good rule of thumb is to water when the first 2 inches of potting soil feels dry. The smaller or more porous your container, the more you’ll have to water it.
If you’re still hand-watering everything, it’s worth it to install a drip irrigation system to take some of the workload off in high season.
Container plants should be grouped together to increase humidity, and they especially benefit from being placed under the canopy of larger plants or trees.
If your plants are in containers, move them to an area of the yard that’s partially shaded in the afternoon.