How to grow Mock Orange in the UK
Philadelphus coronarius
Mock Orange (Philadelphus coronarius) is a flower that grows well in UK gardens. Orange-blossom scent. 'Belle Etoile' has a purple centre. Bombproof old favourite. This guide covers when and how to sow Mock Orange, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Mock Orange
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct Plant | Nov | Dec |
Soil, position & care
- Soil
- Most well-drained soils with added organic matter
- Soil pH
- 6.0–7.5
- Position
- Sun or part shade depending on species
- Sowing depth
- Plant so the rootball top sits level with the soil
- Spacing
- Allow for mature spread
- Sowing
- Plant from containers spring or autumn; water in well
- Growing
- Water through the first two summers; mulch annually
- Harvest & upkeep
- Prune to shape after flowering; remove dead/crossing wood
- Watch for
- Generally tough; watch aphids and powdery mildew
Companion planting for Mock Orange
No specific companion notes for this plant.
Add Mock Orange to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Mock Orange FAQs
How much sun does Mock Orange need?
Mock Orange prefers full sun (6+ hrs direct).
When should I plant Mock Orange in the UK?
In the UK, plant Mock Orange in October. Planting in this window gives the roots time to establish before the plant is asked to grow away.
Is Mock Orange easy to grow?
Easy — good for beginners. Orange-blossom scent. 'Belle Etoile' has a purple centre. Bombproof old favourite.