Answer: Pomegranates need ample, deep watering in the spring and summer months. Ensure that the water soaks slowly and deeply below the root zone, probably 2-3 feet deep, and out past the tree's canopy. Periods of moist soil and then dry soil can affect the fruit. Pomegranates seldom need fertilizer once established in the low desert, but you might want to apply ammonium sulfate (21-0-0) this spring after the last chance of frost (usually around mid-March). Water thoroughly before and after applying to prevent fertilizer burn.
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