Answer: Some plants prefer moist soils and others thrive in dry areas so there's no real guideline to go by. Dusty miller likes soils on the dry side and they should be happy with a weekly soaking; begonias and impatiens like soils on the moist side so they may need to be watered twice a week during the hottest weather. Until you get a feel for how much water to apply and how often to apply it, do a simple soil check. Water slowly and deeply then wait 2-3 days. Dig a hole near the roots of your plants; if the soil is still moist 3" below the surface, you won't need to water for a few days; if the soil is dry, it's time to water again. You'll want to apply water slowly so it has a chance to trickle down and wet the entire root mass. Then the top 2-3 inches of soil should dry out before you water again. Hope this information is helpful. Best wishes with your garden!
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