I don't know where in FL you are (we are in Port St. Lucie), but I wouldn't
worry about our current temps in the south. This isn't supposed to last
very long. Actually, here it wasn't so bad. My concern was the Vandas, but
it didn't go under 50.

For Dends, I'd worry about protracted low temps, not a couple of hours,
unless the plant is in bud or the temps get really low. Don't expect that,
though. Warmer weather on the way!

Diana