Plant name: Mock orange, Lewis’s mock orange, wild mock orange
Botanical name: Philadelphus lewisii
Virtues: Fragrant white flowers that smell like orange blossoms.
Flowers: Appear from late spring to midsummer. White, 1 to 2 inches wide and sweetly fragrant.
Habit: Loosely branched deciduous shrub reaching 6 feet or taller.
Season: Spring/early summer (for flowers).
Origin: Rocky slopes, pine woods, mixed forests from British Columbia to central California and east to Montana. It is the state flower of Idaho.
Cultivation: Grow in sun or part shade. Tolerates drought, but will produce more flowers in very dry areas if given a little supplemental water. Prune after flowering, cutting shoots back to strong buds or young lower growth. Cut some shoots back to the base. USDA Zones 5–8.