Mockorange

Mockorange is the common name for shrubs in the genus Philadelphus, a group of fragrant flowering plants in the family Hydrangeaceae. The name reflects the blossoms’ citrus-like scent, which is often strongest in warm, sunny conditions. It is not a true orange (Citrus); the fragrance is a characteristic feature of philadelphus flowers.

Description and features: Mockorange shrubs are typically deciduous and range from about 1 to 3 meters tall, though some cultivars may be larger. They have opposite, simple leaves with serrated margins. In spring, they produce clusters of white or pale flowers, usually with four petals and a central mass of yellow or cream stamens. The flowers are prized for their sweet, orange-blossom–like fragrance. Bloom time varies by species and climate but is generally late spring to early summer.

Distribution and cultivation: Philadelphus species are native to temperate regions of the Northern Hemisphere, including North America and parts of Asia and Europe. They are widely cultivated as garden shrubs and are valued for fragrance, attractive flowers, and ease of care. Garden forms tolerate a range of soils but prefer moist, well-drained soil and full sun to partial shade. Pruning after flowering helps maintain shape and encourage robust blooming the following year. Propagation is commonly done by softwood cuttings or light layering.

Uses and notable species: Mockorange is popular in ornamental plantings, hedges, and borders, and is used for fragrance in landscape design. Notable species include Philadelphus coronarius (European mock-orange) and Philadelphus lewisii (Lewis’ mock-orange), along with numerous cultivars such as ‘Belle Etoile’ and ‘Aureus’. Some hybrids emphasize earlier or stronger fragrance and extended flowering.