Fruit, maple, oak, and nut trees all require full sun which is at least 6 hours of full sun. However, 8 hours is preferable. Some ornamental trees prefer partial shade. This is indicated in the description of each tree.
Apple trees should receive 10 gallons of water a week unless it rains. Maples should be watered every 3 or 4 days until they establish their root systems- this takes about 6-8 weeks.