In pots outside, how cold can it get for coleus to survive into fall and winter? (to what temperature in degrees before they would die)
Coleus Cold Weather Survival
Certified GKH Gardening Expert
Coleus is not very cold hardy at all. It can survive over the winter in gardening zones 10 and 11, but will be killed in other regions by the first frost if not earlier. So probably 34-38 degrees would be the coldest. Since you have your plants in pots, it would be best to bring them inside.