Does it need full sun?

It blooms best in full sun but tolerates partial shade.

Remove one third of the oldest stems right after flowering to maintain vigor.

Plant guide

Mock orange.

Philadelphus coronarius

Pronounced fil-uh-DEL-fus kor-oh-NAIR-ee-us

Also known as European mock-orange, Mock Orange, Mock-orange, Philadelphia mock-orange, Sweet mock orange

Sweet Mock Orange — Photo by Gianni Del Bufalo bygdb (CC BY) via iNaturalist

The mock orange is a lovely deciduous shrub known for its intensely fragrant, white flowers that bloom in late spring. It is a classic garden favorite that brings a sweet, citrusy scent to your outdoor space. You will find it is quite hardy and easy to grow in most temperate climates.

Another photo of Mock orange — Photo by Martin Scheuch (CC BY) via iNaturalist

At a glance

Care level: Easy
Plant type: Deciduous shrub
Light: Full sun to partial shade
Indoor light: Bright indirect
Water: Every 7 to 14 days
Mature size: 8 to 10 feet
Growth rate: Medium
Hardiness: USDA 4 to 8
Bloom time: Late spring to early summer

Care

Plant this shrub in well draining soil and provide plenty of space for its arching branches to spread. Keep an eye out for aphids on new growth and prune immediately after flowering to encourage next year's blooms. If the leaves start to yellow, check that your soil is not staying too soggy.

Watering: Water deeply whenever the top inch of soil feels dry to the touch.
Feeding: Apply a balanced, slow release fertilizer in early spring before new growth appears.
Pruning: Prune back flowered stems by about a third immediately after the blossoms fade.
Repotting: If growing in a container, move to a larger pot every few years to refresh the soil and provide more room for roots.
Soil: Well draining, fertile loam
Soil pH: 6.0 to 7.5
Temperature: -25 to 35°C
Humidity: 40 to 70%
Drought tolerance: Moderate
Lifespan: Perennial, typically 20 to 30 years
Fragrance: Strong
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes.
Stunted growth despite regular feeding.
Water running straight through the pot.

Safety

People: All parts of the plant are considered mildly toxic if ingested.
Children: Keep away from small children as the plant parts are not meant for consumption.
Contact allergens: Handling the foliage may cause mild skin irritation in sensitive individuals.
Airborne allergens: The strong fragrance can trigger respiratory discomfort for those sensitive to heavy floral scents.
Edibility: The plant is not considered edible and ingestion may cause mild digestive upset.

How to identify it

Opposite, ovate, dark green leaves
Fragrant, four petaled white flowers
Exfoliating, papery bark on older stems
Upright, arching branch habit

Height: 1.5 to 3m
Spread: 1.5 to 2.5m
Leaves: mid-green, deciduous
Flowers: white, creamy-white, 2 to 4cm
Fruit: brown, Autumn

Problems to watch for

AphidsCommon
Powdery MildewCommon
Leaf SpotUncommon
Root RotUncommon

By symptom

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Growing it

Propagation: cuttings, division
When to plant: spring, autumn
Overwintering: No special protection is needed as it is fully hardy. Mulch around the base in late autumn to protect roots.
In containers: It can grow in large containers, but it prefers being in the ground for long term health.

Softwood cuttings

Take 10cm cuttings in early summer.
Remove lower leaves and dip in rooting hormone.
Place in moist potting mix and keep in a humid spot until rooted.

Plant near a seating area to fully enjoy the sweet fragrance during its short blooming window.

Grows well with

Lavender · They share similar sun and soil requirements.
Peony · They provide a beautiful textural contrast during the late spring bloom.

Similar species

Philadelphus lewisii · A North American native with similar white, fragrant flowers.

Science

Family: Hydrangeaceae
Genus: Philadelphus
Order: Cornales
Class: Magnoliopsida
Native range: Southern Europe and parts of Western Asia.
Conservation: Not of conservation concern.

It thrives in woodland edges and thickets where it benefits from moderate moisture and light.

Value to wildlife: nectar source
Pollinators: bees, butterflies
Uses: ornamental shrub, fragrance garden, hedging

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 6/9
Temperature: 5/9
Moisture: 5/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?: It blooms best in full sun but tolerates partial shade.
How do I prune it?: Remove one third of the oldest stems right after flowering to maintain vigor.

Where the name comes from

The genus name Philadelphus honors the Egyptian King Ptolemy Philadelphus, while coronarius refers to its use in garlands or crowns.

Good to know

It is commonly known as mock orange because of its scent.
The flowers were historically used in wedding bouquets.
It is a very hardy shrub that tolerates a wide range of soil types.
Pruning immediately after flowering encourages better blooms next year.

Keep your mock orange growing

This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.