Hibiscus can be deciduous or evergreen shrubs, trees, annuals or perennials, with simple or palmately lobed leaves and large, funnel-shaped flowers over a long flowering season
'Oiseau Bleu' is a medium-sized, upright deciduous shrub with lobed, dark green leaves. Flowers single, violet-blue with a maroon centre, to 8cm in width, in late summer and autumn