I have to sing the praises of Trailing coleus.I tried some new ones this year and these are the best.
#1 Tr.Psycoleus just goes on and on
#2 Tr.Black,this does well in some of the contaners but not all
#3 Tr.Strawberry
#4 Red This gets huge and trails well I have pinched this back but left another alone in another planter and I cant see the companion plants
#5 Tr Green Olives. Well behaved
#6 Tr. Prince. Another spreader and has a chocolate mauve color.Not as red as in this image