Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at gnogardening@agcenter.lsu.edu. I have a problem with my navel orange tree. It is producing two types ...

Orange trees are one of the most recognized types of citrus trees featuring full, leafy canopies and sweet-smelling flowers followed by their famous fruit. A full-size orange tree can grow to 32 feet ...