Dipladenia Rio Deep Red plants have a compact, well-branched habit with minimum vineing so there is no need to stake or trellis them. The 3-inch, trumpet-shaped flowers are produced all summer. Rios can be used in patio containers and combination plantings and as specimen plants. Rios were bred for controlled growth and improved branching so they generally don’t need to be pinched or treated with growth regulators. This plant is attractive to bees, butterflies and birds.