A spiny, evergreen tree to 4m tall, with glossy, ovate leaves to 10cm long. From late spring to summer it bears fragrant, white flowers to 2cm across, these are followed by spherical, orange fruit. Oranges are best grown in a cool or temperate greenhouse or conservatory and moved outside during the summer months
Other common namesorange
SynonymsCitrus × nobilis Ortanique Group
see moreCitrus × tangelo 'Ortanique'
Citrus × nobilis 'Ortantique'
Citrus reticulata (Mandarin Group) 'Ortanique'
Ultimate height2.5–4 metres
Time to ultimate height10–20 years
Ultimate spread1–1.5 metres
MoistureMoist but well–drained
Colour & scent
- Full sun
South–facing or West–facing
- Native to the UK
- Potentially harmful
- Fruit harmful to skin with sunlight/skin allergen. Wear gloves and other protective equipment when handling
Citrus are typically evergreen shrubs or trees, frequently spiny, with simple, leathery, aromatic leaves, usually with winged stalks, and often fragrant white or pink-tinged flowers, followed by large, juicy fruits
- Name status
How to grow
Under glass, grow in loam-based potting compost (JI No. 2) in full light, with shade from hot sun. In growth, water freely, mist daily and apply a balanced liquid every 2-3 weeks; water sparingly in winter. See citrus cultivation for further information
Propagate by semi-ripe cuttings in summer, or layer in early spring. Sow seed at 16°C in spring; seedlings do not come true to type
Suggested planting locations and garden types
- City and courtyard gardens
- Mediterranean climate plants
- Patio and container plants
- Conservatory and greenhouse
- Edible fruit
See pruning group 1
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