Overview
Pittosporum ralphii 'Green Globe' is a bushy shrub in the genus Pittosporum, part of the Pittosporaceae family, with evergreen foliage. Pittosporum ralphii 'Green Globe' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include city and courtyard gardens, coastal, cottage and informal garden, hedging and screens and wall side borders.
About
Pittosporum ralphii, also known as karo, soft karo, or Ralph's desertwillow is a small tree up to 6 m (20 ft) tall. Pittosporum ralphii is native to New Zealand.
Growing conditions
Best soil and position for Pittosporum
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East-facing, North-facing, South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Pittosporum ralphii 'Green Globe' size, habit and characteristics
- Plant type
- Shrub
- Habit
- Bushy
- Foliage
- Evergreen
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Hedging and screens, Wall side borders
Care notes
Pruning and caring for Pittosporum ralphii 'Green Globe'
- Propagation
- Semi-hardwood cuttings in summer
- Pest resistance
- Glasshouse red spider mite, Aphids, Cushion scale, Pittosporum sucker
- Disease resistance
- Powdery mildews, Leaf spot, Honey fungus (rarely)
Frequently asked questions
Where is the best place to plant Pittosporum ralphii 'Green Globe'?
Pittosporum ralphii 'Green Globe' prefers full sun and partial shade. It suits sheltered positions.
What soil does Pittosporum ralphii 'Green Globe' need?
Pittosporum ralphii 'Green Globe' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.
Is Pittosporum ralphii 'Green Globe' hardy in the UK?
Pittosporum ralphii 'Green Globe' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Pittosporum ralphii 'Green Globe'?
Semi-hardwood cuttings in summer.
More in the Pittosporum genus
- PittosporumPeter's sperm
- Pittosporum bicolorTasmanian whitewood
- Pittosporum crassifolium 'Napier' (f)
- Pittosporum crassifolium 'Variegatum' (v)
- Pittosporum divaricatum
- Pittosporum ellipticum
- Pittosporum heterophyllum 'La Blanca' (v)
- Pittosporum patulum
