Leyland Cypress
Cupressus × leylandii
Leylandii
About this plant
Leyland Cypress is a fast-growing evergreen tree known for its dense, dark green foliage and tall, narrow shape. It is commonly used as a privacy screen or windbreak in gardens and landscapes. The tree is a hybrid between Monterey Cypress and Alaska Cedar, prized for its rapid growth and adaptability.
Taxonomy
- Genus
- Cupressus
- Family
- Cupressaceae
- Higher classification
- Order: Pinales
- Plant type
- Tree
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Hybrid origin from California, USA
- Distribution
- Widely cultivated in temperate regions worldwide, especially in the UK, USA, and parts of Europe for hedges and screens.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Watering frequency
- Moderate
- Watering interval
- 7–14 days
- Humidity
- Normal
- Minimum
- -15 °C
- Maximum
- 35 °C
- Optimal
- 10-25 °C
- USDA hardiness zones
- 6-10
- Soil pH
- 6.0-7.5 (slightly acidic to neutral)
- Soil type
- well-draining loam or sandy soil
Watering. Water regularly during the first few years to establish roots, then reduce frequency. Avoid waterlogging; allow soil to dry slightly between watering.
Fertilizing. Apply a balanced, slow-release fertilizer in early spring to support healthy growth. Avoid over-fertilizing, which can cause excessive, weak growth.
Leyland Cypress is a fast-growing evergreen tree that is fairly tough and drought-tolerant once established. It prefers full sun and well-drained soil. Overwatering or poor drainage can cause root problems. Regular pruning helps maintain shape and size.
Propagation
- Propagation methods
- Cuttings
- Care difficulty
- Medium
Ornamental features
- Flowering
- No
Dense, dark green needle-like foliage with a tall, narrow, columnar form.
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Low spread
Generally non-toxic but sap can irritate skin; keep away from pets and children to avoid skin contact.
Allergy information
- Allergy risk
- Moderate
- Allergy triggers
- Pollen, Sap or latex, Skin contact
- Pollen level
- Moderate
Leyland Cypress can produce pollen that may cause mild allergic reactions in sensitive individuals, especially during its pollination season. People with pollen allergies should limit exposure during this time. The tree's sap can also irritate skin in some cases, so wearing gloves when handling is recommended.
Common problems
Leyland Cypress can suffer from root rot if overwatered or planted in poorly drained soil. It may also be affected by aphids or fungal diseases if air circulation is poor. Lack of pruning can lead to overly tall or dense growth.
Uses
Commonly used as a privacy hedge, windbreak, or ornamental tree in gardens and landscapes due to its fast growth and dense foliage.
Notes
Prune annually to control height and maintain a dense hedge. Avoid planting too close to buildings or fences due to its large size and root spread. Leyland Cypress can be sensitive to drought when young but becomes more tolerant with age.