Scientific Name: Philadelphus lewisii
Common Name: Lewis mock orange
Family Name: Hydrangeaceae
Origin: B.C. west of Cascades, U.S. - northwest
Hardiness Zone: Zone 5: (-29 to -23 °C)
Plant Type: Shrub - deciduous
Mature Size: 2 - 3m x 1.5 - 2.0m (height x width)
Habit: Stiffly upright
Form: Oval - vertical
Texture: Medium - fine
Landscape Uses: Fragrance, Mixed shrub border, Small garden/space, Specimen plant, Woodland margin
Exposure: Full sun, Part sun/part shade
Soil or Media: Acidic, Well-drained
Leaves: Simple, Opposite, Heavily veined, Tomentose, Elliptic, Ovate, Entire, Serrulate
Flowers: Raceme, White, May-Jun
Fruit: Capsule, Brown, Aug-Sep
Key ID Features:
Leaves opposite, larger blades usually less than 6 x 3cm, broadly lanceolate to broadly ovate, or narrowly to broadly elliptic, margins entire or irregularly to regularly serrate, crenate, or dentate; inflorescences not very fragrant, usually cymose racemes or cymose panicles each with (1-)5-11 florets, 3-4.5cm wide, pedicels 3–8mm long; petals white, 5-20(-25) x 4-15mm; stamens 25-40(-50), filaments distinct, 5-11mm long; anthers 2 x 1.5mm. Winter ID: fruit small brown capsules split in 4, persist in winter; leaf scar heart-shaped, non-descript bundle scars.