What Temperature Is Too Cold for Coleus

So, what’s the lowest temp for coleus plant livability? Cold nights in the 40-degree Fahrenheit range can damage the coleus. This is true even if there is no frost. Generally speaking, coleus plants are too tender to survive temperatures at the literal freezing point, which is, of course, 32 degrees.

At what temperature should I bring my coleus inside?

The lowest temperature coleus can tolerate is 33°F, but only for very brief periods of time. And that is really too cold for them. Though they can handle a light frost, if it dips below freezing for long, they will die. They prefer temps above 60° F – the hotter the better.

Can coleus recover from cold?

But as tropicals, they can’t take the cold. Instead of letting your coleus go with the first frost, try overwintering them by taking cuttings. “If you’ve got a sunny window, anyone can do it,” said Steve Kelley of Kelley & Kelley, the Long Lake nursery known for its coleus.