This depends on the type of watering system you have, drip or spray, or if you are watering with a garden hose. Soil type also plays a role in determining how much water is held in the soil. In sandy soils, water drains quickly so trees need more frequent watering. The best way to find out if your tree is getting adequate water is to dig around the root area to a depth of about six-inches and see if the soil is moist. If it’s dry then increase the water amount and check again. Soil should be moist but not soaking wet. Remember, too much water is just as bad as too little. Refer to our Watering section at this site for more information.