Do coleus plants survive winter?
Then, do coleus plants come back every year?
Outside USDA zones 9 through 11, coleus is a beautiful spring-through-fall annual. As a tropical plant, coleus can't bear a chill and will blacken and die once the weather dips much below 50 degrees Fahrenheit. Keep your coleus looking beautiful through its growing season by pinching back the stem tips periodically.
Considering this, how do you winterize a coleus plant?
The basic idea for overwintering coleus is to cut pieces off your coleus plant, root them, plant them in pots and keep them growing in a sunny window through winter until it's time to plant them outside in spring.
Caring for your new plants: All Coleus are tender and cannot survive freezing temperatures. It is best not to place them outside for the season until they have been hardened off and the average overnight low temperatures stay above 60 degrees. This might be a few weeks after your last average spring frost date.