Different trees need different amounts of water. But here are
some general watering guidelines for a freshly planted 15-gallon
tree: If you created a berm around your tree, fill the basin
created by it with water and let it soak into the ground.
Continue to fill the basin with water until it has received
about 15 gallons of water. Watering schedule (15 gallons at each
watering for a 15-gallon tree): - Month 1: twice a week - Months
2–3: once a week - Months 4–7: once every two weeks - Months
8–12: once every three to four weeks - Years 2–5: once every
four to six weeks However, always check the soil for moisture
about four inches down before watering. If it’s really wet,
don’t water, even though the schedule says to. Water slowly.
When water stops soaking in, the soil has become saturated and
reached its water-holding capacity. You’re done with that
watering session!