Wild Mock Orange
Philadelphus lewisii
Also listed as Philadelphus californicus, Philadelphus confusus
Also known as Lewis' Mock Orange, Oregon Mock Orange, Mock-orange
Climate Match for your location
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A deciduous native shrub of the Pacific Northwest known for its fragrant white flowers that bloom in late spring and early summer. Hardy and low-maintenance, it thrives in full sun and is excellent for wildlife habitat and pollinator support.
Why grow it
Philadelphus lewisii produces more intensely fragrant flowers than many ornamental shrubs, making it valuable where scent is a design priority. As a native Pacific Northwest species, it requires minimal inputs once established compared to non-native mock oranges, and supports regional pollinator populations more effectively than cultivars bred for ornamental traits alone. It occupies the mid-story shrub layer in native plant communities, offering structure and seasonal interest without the maintenance demands of more tender ornamental alternatives.
Watch out for
While generally hardy, young plants benefit from consistent moisture during their first season after planting. Flowering branches should be pruned immediately after bloom to maintain shape, as this species flowers on previous season's wood; late-season pruning will reduce the following year's flower production. In regions with extended drought, supplemental water during establishment helps ensure vigor.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Hydrangeaceae
Native to the United States
Native Range
Pacific Northwest North America
Native to: California, Idaho, Montana, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Notable Cultivars
'Goose Creek' is a compact cultivar reaching 5–6 feet, prized for abundant fragrant flowers. 'Blizzard' is a dwarf form under 3 feet tall, ideal for smaller gardens.
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
Flood Tolerance
Deer Resistance
Inferred from USDA browse palatability
pH Range
Soil Texture
Establishment & Care
- Establishment
- Maintenance
- Propagation
A deciduous native shrub of the Pacific Northwest known for its fragrant white flowers that bloom in late spring and early summer. Hardy and low-maintenance, it thrives in full sun and is excellent for wildlife habitat and pollinator support.
Climate Match for your location
See how well Wild Mock Orange grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Philadelphus lewisii produces more intensely fragrant flowers than many ornamental shrubs, making it valuable where scent is a design priority. As a native Pacific Northwest species, it requires minimal inputs once established compared to non-native mock oranges, and supports regional pollinator populations more effectively than cultivars bred for ornamental traits alone. It occupies the mid-story shrub layer in native plant communities, offering structure and seasonal interest without the maintenance demands of more tender ornamental alternatives.
Watch out for
While generally hardy, young plants benefit from consistent moisture during their first season after planting. Flowering branches should be pruned immediately after bloom to maintain shape, as this species flowers on previous season's wood; late-season pruning will reduce the following year's flower production. In regions with extended drought, supplemental water during establishment helps ensure vigor.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Hydrangeaceae
Native to the United States
Native Range
Pacific Northwest North America
Native to: California, Idaho, Montana, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
Flood Tolerance
Deer Resistance
Inferred from USDA browse palatability
pH Range
Soil Texture
Establishment & Care
- Establishment
- Maintenance
- Propagation
Similar shrubs you might consider:
Enter your ZIP code to see top native species and strong climate fits for you.
Companion Planting
Plants well with
Notable Cultivars
'Goose Creek' is a compact cultivar reaching 5–6 feet, prized for abundant fragrant flowers. 'Blizzard' is a dwarf form under 3 feet tall, ideal for smaller gardens.