mock orange
© Richie Steffen / Great Plant Picks
© David Jones
Philadelphus 'Belle Etoile' is loved for its sensational, sweet fragrance, which flows through the garden like an unseen wave in late spring to early summer. Its abundant flowers are single, creamy white with a maroon blotch at their centers and to about 2 inches across. It is a substantial shrub, requiring room to spread. Use it in a mixed border or as an informal screen. Plant it anywhere its fragrance will be appreciated. Mock orange's flowering branches can be cut for decoration, the lower leaves stripped off and stems pounded before they are placed in water. This hybrid is noted for better fragrance, a longer flowering period and a more compact habit than other Philadelphus.
Plant Type: shrub
Foliage Type: deciduous
Plant Height (10-year): 5 ft. 0 in. (1.52 meters)
Plant Width/Spread (10-year): 6 ft. 0 in. (1.83 meters)
Plant Height-Mature: 8 ft. 0 in. (2.44 meters)
Plant Width-Mature: 8 ft. 0 in. (2.44 meters)
Hardiness: USDA Zones 5 to 8
Flower Color: cream
Sun/Light Exposure: full sun to light or open shade
Water Requirements: drought tolerant when established, but appreciates occasional watering
Mock orange prefers a moist to well-drained soil in full sun to light or open shade, but it will tolerate sandy or clay locations. In too much shade the flowering is greatly reduced. Once established, it is drought tolerant, but appreciates occasional watering during prolonged dry weather. Remove old, twiggy growth after the shrub finishes flowering, leaving robust canes. If it becomes leggy, it can be cut right back to ground level and allowed to regrow. Hard pruning is best done in winter.
This is one of a group of hybrids developed by French plant hybridizer Pierre Lemoine in the late 1800s and early 1900s.
Text and photos ©2020 Great Plant Picks/Elisabeth Carey Miller Garden except where otherwise noted
Funded by the Pendleton and Elisabeth Carey Miller Charitable Foundation, The Seattle Times, and Individual Donors
Administered by the Elisabeth Carey Miller Botanical Garden