Hibiscus syriacus 'Oiseau Bleu' STD - Bluebird Rose of Sharon Standard

Bluebird Rose of Sharon Standard (Hibiscus syriacus 'Oiseau Bleu' STD) is a variety of rose of Sharon, a tough, upright deciduous shrub that blooms from mid to late summer into fall, when few other shrubs are in flower. It is trained as a standard, with a single straight trunk topped by a rounded head. Plant in full sun to part shade in well-drained soil. Hardy in USDA Zones 5 to 9.