Q: We’re in a big drought and I have to water my big oak and pecan trees. Is it necessary to move the water hose/sprinkler around the tree or is it okay to leave the hose on just one side of the tree at the drip line?

A: The method by which water moves from the roots up to the top of a tree differs among species. On oaks, water you apply to one side of the root system will only benefit that side. On maples, water applied to one side benefits the whole tree. I really like soaker hoses for tree watering. Get details on how much to apply here .