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Perennials > Alcea > Alcea rosea > Alcea rosea

Alcea rosea


Hollyhock




Origin:  Native to Europe.
Family
Malvaceae
Genus
Alcea
Species
rosea
Category
Perennials
Type
Shrub (deciduous)
Synonyms
Althaea rosea
USDA Hardiness Zone
2 - 10
RHS Hardiness Zone
H5
Temperature (°C)
-15° - (-10)°
Height
1.5 - 2.5 m
Spread
.5 - 1 m
Photographs
Description and Growing Information
Flowering Period
JuneJulyAugust
General Description
Genus name is the Latin name from the Greek word alkaia for a kind of mallow.
Landscape
Flower borders/beds, wall-side borders, cottages and informal gardens.
Cultivation
Full sun and partial-shade. Well-drained, chalk, sand or loam with a neutral, acid or alkaline pH.
Shape
Columnar and upright.
Pests
Slugs, caterpillars and flea beetles when young growth. Susceptible to rust, leaf spot and anthracnose. Spider mites and Japanese beetles can be a problem.
Leaf Description
Large, heart-shaped leaves that have 3 - 7 lobes and gets progressively smaller towards the top of the spire. Rigid, towering spikes or spires that reach a height of 1 - 2.5 m tall.
Flower Description
Showy funnel-shapped flowers. Tall and erect racemes in summer. 10 - 12 cm in diameter, outward-facing, single flowers.
Colour Description
Flowers are a purplish-pink, reddish-white or yellow in colour. The leaves are green in colour.
Texture Description
The leaves are rough in texture.
Notable Specimens
Kincarden, Ontario, Canada.
Propagation
Seed. Sown in gentle hear in mid-winter or in-situ in spring.
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