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
Cultivars
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Description and Growing Information
Flowering Period
| 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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