Pittosporum tenuifolium 'Silver Queen' (Silver Queen New Zealand Pittosporum, Silver Queen Tawhiwhi, Silver Queen Kohuhu)


Botanical Information

FamilyPittosporaceae
GenusPittosporum
Speciestenuifolium
Cultivar'Silver Queen'
CategoryWoody
TypeShrub (evergreen)

Details

USDA Hardiness Zone8b - 9a
USDA Hardiness Ref.
Canadian Hardiness Zone8a
Canada Hardiness Ref.
RHS Hardiness ZoneH4
RHS Hardiness Ref.
Temperature (°C)-9 - (-4)
Temperature (°F)15 - 25
Height2.5 - 4 m
Spread1.5 - 2.5 m
Flowering PeriodMay, June, July

Description and Growing Information

General DescriptionPittosporum tenuifolium 'Silver Queen' is a large evergreen shrub with variegated grey-green and creamy-white and infrequent small, dark purple flowers in spring and summer.
CultivationGrow in a sheltered location, in full sun to part shade, in moist, well-drained, fertile soil.
PestsPossible problems include: aphids, red spider mite, pittosporum sucker and cushion scale.
Notable SpecimensRHS Garden Rosemoor, North Devon, England.
HabitatHorticultural origin.
Leaf DescriptionAlternate, leathery, grey-green with cream-coloured, slightly undulate margins.
Flower DescriptionInfrequent, small with 5 dark purple petals.
Fruit DescriptionWoody, spherical, splitting to expose seeds surrounded by a sticky pulp.

Photographs