no flowers dipladenia
Last fall I brought Rio Dipladenia inside for the winter. This spring I transplanted and fertilized and placed it outdoors. The plant has an upright growth habit with not much vining. I clipped back the leggy bare vines to give it a better shape. Problem is there are no flowers or sign of buds at all. Help.
Sounds like you have done everything right. Give the plant time to start putting out some growth. It needs warm temperatures for best growth and bright but indirect sun. Take a look at the attached link for more information on care https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htm