How Much Water Do Trees Need?

Trees need deep infrequent watering, once a month in the summer and in other months when there is no rainfall.

Newly planted trees should be watered with up to 5 gallons of water once a week for the first 3 years.
Small, established, low water trees need only about 20 gallons a month – the amount most people use in one shower!
Large and mature, low water trees need approximately 200 gallons per month
Pay attention to the soil moisture under your tree and adjust amounts accordingly.

TreeWateringGuidelines including tree watering frequency by season, and application rates (gallons). Short article: Are your trees drinking enough?