Answer: How much and how often you water really depends upon the plant, the soil type and the weather. Sandy soil drains quickly and you'll need to apply water more often. Clayey soil holds water for a very long time so you'll need to water less frequently. In general terms, trees and shrubs growing in loamy garden soil will require about one-inch of water per week, applied slowly so it has a chance to percolate down and wet the entire root mass. A good way to accomplish this is to build a basin beneath the tree and flood the basin once or twice each week. If you're not sure about your soil type, water as usual and then dig down to see how far the water has penetrated. If it's not going all the way down to the depth of the roots, you'll need to apply more water. Once you've determined how much water it takes to wet the entire root mass you can decide how slowly to apply the water, and how often you'll need to water.
Q&A Library Searching Tips