Answer: The answer depends upon your soil type and the weather. As a rule of thumb, most landscape trees and shrubs need about one inch of water per week, applied slowly so it has a chance to trickle down and wet the entire root mass. Sandy soils don't hold as much water as clayey soils so you need to water more frequently if you have sandy soils. For annuals and perennials, you may need to water every 3-4 days in hot weather. You can water deeply, wait 3-4 days and then dig down into the soil to see how moist it is. If it is still moist one-inch below the soil surface, you won't have to water for a few more days. If it is dry, it's time to water.
Best wishes with your garden!
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