Answer: There's no easy answer to your question. When plants are not actively growing, they don't need nearly as much water as when they are actively growing and when the weather is hot. The rule of thumb is to provide one inch of water per week to landscape trees and shrubs (but not native shrubs or cacti). This one inch rule also applies to roses. If you water by hand, you can guess about how much you are providing. If you have a drip system, turn the system on every other day. Switch to twice a day every other day when the weather begins to get warm. Hope this provides some guidance!
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