Philadelphus madrensis

A highly desirable, upright, deciduous shrub species native to Mexico, Southern Arizona and New Mexico and named after the Sierra Madre Mountains. It grows to 2m tall and is semi-evergreen in its native habitat and deciduous in the UK, arching, almost pendulous branches carry dark green foliage and in summer, single, solitary, extremely fragrant white flowers with a pink centre appear with dark purple calyxes. Known for its powerful scent with one flower enough to fragrance a room