Overview
Thuja 'Green Giant' is a narrowly conical conifers in the genus Thuja, part of the Cupressaceae family, with evergreen foliage. Thuja 'Green Giant' 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 'Green Giant' is a rapidly growing evergreen conifer with a narrowly conical habit, typical of the Thuja genus. It features flat sprays of small, aromatic, scale-like foliage and produces small, knobby cones. This cultivar thrives in full sun and prefers fertile, moist but well-drained loam soil with a neutral pH. Suitable for hedges, screening, or specimen planting, it is hardy in the UK (H7) and can be propagated by semi-hardwood cuttings. It is best grown in south, east, or west-facing aspects, in both exposed and sheltered locations.
About the genus
Thuja is a genus of coniferous tree or shrub in the Cupressaceae. There are five species in the genus, two native to North America and three native to eastern Asia. The genus is monophyletic and sister to Thujopsis.
Wikipedia contributors, "Thuja", CC BY-SA 4.0 — Thuja
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 'Green Giant' 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 'Green Giant'
- 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 'Green Giant'?
Thuja 'Green Giant' prefers full sun. It suits exposed and sheltered positions.
What soil does Thuja 'Green Giant' need?
Thuja 'Green Giant' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Thuja 'Green Giant' hardy in the UK?
Thuja 'Green Giant' 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 'Green Giant'?
Semi-hardwood cuttings.
More in the Thuja genus
- Thuja occidentalis 'Smokey'Northern White-Cedar
- Thuja occidentalis 'Southport'Northern White-Cedar
- Thuja plicata 'Excelsa'western red cedar 'Excelsa'
- Thuja plicata 'Kager's Beauty'Western Redcedar