Overview
Thuja occidentalis 'Yellow Diamond' is a narrowly conical conifers in the genus Thuja, part of the Cupressaceae family, with evergreen foliage. Thuja occidentalis 'Yellow Diamond' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include hedges, screening and specimen planting.
About
Thuja occidentalis, also known as northern white-cedar, eastern white-cedar, or arborvitae, is an evergreen coniferous tree, in the cypress family Cupressaceae, which is native to eastern Canada and much of the north-central and northeastern United States. It is widely cultivated as an ornamental plant.
Growing conditions
Best soil and position for Thuja
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Thuja occidentalis 'Yellow Diamond' size, habit and characteristics
- Plant type
- Conifers, Trees
- Habit
- Narrowly conical
- Foliage
- Evergreen
- Suggested uses
- Hedges, Screening, Specimen planting
Care notes
Pruning and caring for Thuja occidentalis 'Yellow Diamond'
- Propagation
- Semi-hardwood cuttings
- Pest resistance
- Scale insects, Conifer aphid
- Disease resistance
- Honey fungus, Thuja blight, Coryneum canker
Frequently asked questions
Where is the best place to plant Thuja occidentalis 'Yellow Diamond'?
Thuja occidentalis 'Yellow Diamond' prefers full sun. It suits exposed and sheltered positions.
What soil does Thuja occidentalis 'Yellow Diamond' need?
Thuja occidentalis 'Yellow Diamond' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Thuja occidentalis 'Yellow Diamond' hardy in the UK?
Thuja occidentalis 'Yellow Diamond' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Thuja occidentalis 'Yellow Diamond'?
Semi-hardwood cuttings.
More in the Thuja genus
- Thuja 'Green Giant'

- Thuja koraiensisKorean arborvitae
- Thuja occidentalis 'Barabits Gold'

- Thuja occidentalis 'Bateman Broom'

- Thuja occidentalis 'Beaufort' (v)

- Thuja occidentalis 'Boothii'

- Thuja occidentalis 'Buchananii'

- Thuja occidentalis 'Caespitosa'
