This grower is sure of this plant identification.
Tender plant with large scented tubular flowers in summer
Sinningia genus. These are tuberous perennials and deciduous or evergreen shrubs. The flowers can become as large as 10cm across and will bloom in blue, violet, pink or red.
They are frost tender, min 15C. They prefer a humid atmosphere with bright light but not direct sun with moist, peat soil. When leaves die down after flowering, allow tubers to dry out, then store in a frost-free area.
Has showy flowers.