Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at [email protected]. I have a problem with my navel orange tree. It is producing two ...

The orange tree in my backyard grew from a seed I planted about 10 years ago. The seed came from a sweet orange. For the last two years my tree has produced oranges, but they are sour and not very ...

Q. Our young navel orange tree has a tall sprout coming up the middle. This is the first year the sprout has grown leaves; before it was just thorns. Should this sprout be cut off? This year’s ...