I have two orange trees that were planted 12 years ago. They bore beautiful fruit until four years ago, when my gardener pruned them rather severely. Since that pruning, no more fruit at all.

That seed could have grown into a whole orange tree. Growing an orange tree — or any citrus tree — from a seed is no more difficult than growing a bean plant from seed.

My personal citrus whisperer, Joey Hernandez of Bon Appetit, advises that leaves will tell you what your tree needs. Generally speaking, if they're drooping, they're thirsty.

The tree seems to have produced plenty of fruit this winter. A: Based on the photos, it appears that your citrus tree may have one of two diseases: Phytophthora gummosis or Psorosis.

The tree has a name: Donaldson. Mattia called it the most researched tree in the state of Florida. It’s also the tree that growers hope will save the state’s citrus industry.

My orange tree was planted 20 years ago and is 10 feet tall. It is a semi-dwarf, meaning that a bud from a navel orange tree was grafted onto a rootstock of a species known as hardy orange ...

The reason it's labeled as California Historical Landmark No. 20 is that it's perhaps the oldest navel orange tree in existence, 143 years to be exact. But right now, it faces a big threat.

Their orange trees, they thought, would be all right. They were resilient. Three years later, in 2012, citrus greening had spread across Florida, including to the region that Uncle Matt’s calls ...

Plant Doctor ( prints 01/12/19) Q. Our orange tree has grown too tall and wide for the yard. When can the tree be pruned? A. Delay the pruning for about a month.