We live deep within the Metro Houston 'Heat Island' . This makes for some interesting weather forecasts. I never actually know how cold it will be until it happens. We've had about 1 hour of frost so far this winter with a temperature of 32 degrees for about 20 minutes one morning. This was according to a home weather station in our neighborhood. It makes for some unusual scenes.
Half the plant freezes. Inches away the other half is fine! This happens with elephant ears as well.
Frost on the roof, but not on the plants.
I cover some plants with a blanket. Guess who decides to stop by? Our cat.
Jack Frost on leaves in our neighbor's yard across the street, but not on mine!
It's still a zone 10 (30-40 degree minimum) garden this year, but in January the tropical party will probably be over and my garden will settle down for its winter nap.