Many tropicals, succulents and citrus trees can withstand a quick dip into freezing temperatures, but not a deep freeze.

A mature citrus tree typically needs between 40 and 50 inches of water a year, said David Laughlin, a research associate at the Texas A&M AgriLife Research Center. The average rainfall in the ...

Over the past few decades, citrus trees across the country have fallen victim to citrus greening, a disease that has wiped out large swaths of Florida’s once-thriving orange groves.

How 2 Texas gardeners handle heat ... build structures they cover with heavy plastic to protect beloved citrus or olive trees. A thick layer of mulch on the ground also can help protect roots.