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Scientific Name: Alcea rosea L.
Synonym: Althea rosea
Family: Malvaceae
Hollyhock (Alcea  rosea) Recommended Temperature Zone:
sunset: All zones
USDA: 4-10

Frost Tolerance: Hardy in Phoenix

Sun Exposure: Full sun

Origin: Eastern Mediterranean

Growth Habits: Annual in Phoenix, tall spikes of flower reaching 9 feet (2.7 m) for some varieties

Watering Needs: Regular water

Propagation: Seeds in late summer or spring

Growing 4 to 8 feet high, hollyhocks are an old garden standard, particularly useful for background screening or where vertical accent is desired. They grow best in full sun in deep, rich, well drained soils. Some varieties act as reseeding biennials. Annual types are available that flower the first year. Many colors are available from pastels to near black.
Linnaeus, who named this plant, used both Alcea (Latin form) and Althea(Greek form) from the Greek word for 'to cure'

Hollyhock (Alcea  rosea)

Cultural Practices:
Avoid soils that are too rich. Check for rust and spider mites.

Blooming Habits:

Fruiting Habits:

Sow in September for spring bloom. Protect the seedlings from snails and slugs. They can also be sown indoor at 50-55F (10-12C)

Botanica : The Illustrated A-Z of over 10,000 Garden Plants

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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