Mock orange (Philadelphus lewisii)
Care, watering, light and tips for Mock orange on Floravia.
Quick facts
- Family: Hydrangeaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
About Mock orange
Philadelphus lewisii, commonly known as Lewis' mock orange, is a deciduous shrub native to western North America, cherished for its abundant and fragrant white flowers that bloom in late spring and early summer. Its arching branches and bright green foliage make it ideal for hedges, shrub borders, or as a standalone specimen in naturalistic or wild gardens. It attracts pollinators such as bees and butterflies.
Native range
Northwestern North America, from southern British Columbia to California and Montana.
Care tips
This shrub thrives in full sun to partial shade, with at least 4-6 hours of direct sun for optimal flowering. It prefers well-drained soils, from moderate to low fertility, and tolerates a wide range of pH. Watering should be regular during the first year to establish; once mature, it is quite drought-tolerant, though it appreciates occasional watering during dry spells. A common mistake is pruning too late in the season, as it blooms on old wood; prune it right after flowering to maintain its shape and encourage new blooms for the following year.
How to save a dying Mock orange
- Warning signs
- Wilting or yellowing leaves, premature flower drop, slow or no growth.
- First aid
- Check soil moisture, prune dry branches, consider repotting if drainage is poor.
- What kills it
- Overwatering (causes root rot) or prolonged drought (especially in summer).
- Can it be saved?
- Yes, if the cause is corrected in time and there's no irreversible damage to roots or trunk.