human
I need to know what kind of tree to plant in my back yard.
assistant
A good choice for a small backyard would be a fruit tree such as an apple, cherry, or plum tree. These trees will provide you with delicious fruits and can be kept relatively small. You could also consider planting a berry bush like a raspberry or blackberry, which will give you plenty of fresh fruit all year round. If you have more space, you might want to look into a shade tree like an oak or maple. These trees can provide beautiful foliage, as well as shade from the sun.