Does coleus die after flowering?
Furthermore, should I pinch off coleus flowers?
To pinch back your coleus, simply cut or pinch off any stem at a point where two stems or two leaves are growing from it. Around midsummer, coleus should be pruned regardless of whether it will be allowed to flower. If it's not maintained, it could overgrow and branches can snap from their weight.
Just so, 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.
Pinch Back and Prune Without regular pruning, coleus plants can get "leggy" and unattractive. As long as you prune and cut them back faithfully, your coleus should stay bushy and handsome. Cut off any blooms that appear so the plant will put its energy into the foliage.