Woody > Spiraea > Spiraea japonica > Spiraea japonica 'Walluf'

Family

Rosaceae

Genus

Spiraea

Species

japonica

Cultivar

'Walluf'

Category

Woody

Type

Shrub (deciduous)

USDA Hardiness Zone

6

Canadian Hardiness Zone

6 - 7

RHS Hardiness Zone

H6

Temperature (°C)

(-20) - (-15)

Temperature (°F)

4 - 5

Height

1.5 - 2 m

Spread

1.5 - 2 m

Photographs

Description and Growing Information

Flowering Period

General Description

S. japonica 'Walluf' is an upright deciduous shrub growing to approximately 2 m tall and 2 m wide. During the midsummer the flattened headed flowers bloom in large clusters of bright pink

Cultivation

S. japonica prefers full sun but is tolerant of partial shade. It prefers plenty of water during the growing season though caution should be taken as it cannot tolerate saturated soils for extended periods of time. It prefers a rich, moist loam, but it can grow in a wide variety of soils, including those on the alkaline side.

Growth

Medium

Pests

Susceptible to Powdery mildews.

Habitat

Horticultural origin.

Leaf Description

Leaves are generally an ovate shape about 2.5 cm to 7.5 cm long, have toothed margins, and alternate along the stem.

Flower Description

Clusters of rosy-pink flowers are found at the tips of the branches.

Notable Specimens

Wakehurst Place, Ardingly, Haywards Heath, Sussex.

Propagation

Propagate during the spring via semi-ripe or softwood cuttings. Additionally, propagation by hardwood cuttings is viable but should be done during the winter.

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