This is the best time to plant vinca, in full sun, and caladiums in shade only. They like the hot weather. Use a variety of vinca that is resistant to soil borne diseases. It comes in many colors, except yellow. A caladium called ‘Red Flash” is one to try.
You can still plant warm season color in containers or int he ground using 4-inch or larger nursery stock. Keep them watered. Containers may need water twice a day.
Prepare for plant seeds of fall tomatoes.
Plants will need supplemental water if rainfall is inadequate. Visually check each sprinkler head weekly to be sure your irrigation system is working properly and make any needed adjustments or repairs.