Experts and BHG readers answer.
How to Maintain moisture in hot blazing nj sun vegis & flowers watered 2 to three times a day.
"If you're having trouble keeping up with watering, you may want to invest in an automatic irrigation system. You can usually find inexpensive drip irrigation systems at hardware stores or garden centers. Add a timer for automatic watering and you're set!
It would also help to mulch the garden to cut down on evaporation and reduce the heat."