Sophora japonica 'Sun King' (Sophora, Kowhai Sun King)


Botanical Information

FamilyPapilionaceae
GenusSophora
Speciesjaponica
Cultivar'Sun King'
SynonymsSophora microphylla 'Sun King' 
CategoryWoody
TypeShrub (evergreen)

Details

USDA Hardiness Zone8b
USDA Hardiness Ref.
Canadian Hardiness Zone9
Canada Hardiness Ref.
RHS Hardiness ZoneH4
RHS Hardiness Ref.
Temperature (°C)- 10
Temperature (°F)14
Height3m
Spread3m
Flowering PeriodFebruary, March, April

Description and Growing Information

General DescriptionA tall and broad evergreen shrub, producing yellow flowers in late winter and early spring that droop down with long anthers.
ShapeVase-shaped.
LandscapeFlower borders and beds, wall-side borders, city and courtyard gardens, coastal cottage and informal gardens.
PropagationBy grafting in late-winter.
CultivationGrow in full sun in well-drained soil.
PestsGenerally disease free.
Notable SpecimensCaerhays Castle, Goran, Cornwall, United Kingdom.
Leaf DescriptionPinnate glossy dark green leaves composed of up to 40 pairs of small oblong leaflets; smaller than those of Sophora japonica.
Flower Description Yellow pea-like flowers 5 cm in length sometimes fragrant in racemes or panicles.
Texture DescriptionFine-textured.

Photographs