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Althaea officinalis (Marsh mallow)

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Skill rating Beginner
skill rating
Ultimate spread 0.5m
max. spread
Ultimate height 2.5m
max. height
Time to maturity 2 years
to maturity
Maintenance level 1 hour care
per year

Botanical name: Althaea officinalis

Other names: Marsh mallow, Romney marsh


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Genus: Althaea

Species: A. officinalis - A. officinalis is a hardy biennial, with greyish velvety leaves and white flowers flushed deep pink in summer.

Althaea officinalis is: Deciduous

Flower: Flushed pink, White in Summer

Foliage: Grey-green in Summer

Habit: Erect

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Watch out for

Specific pests: Capsid bug , Caterpillars , Flea beetles , Slugs

Diseases: Susceptible to a rust.

General care

Pruning: Cut back after flowering.. REGISTER to read more...

Propagation methods: Seed. REGISTER to read more...


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Althaea officinalis (Marsh mallow) will reach a height of 2.5m and a spread of 0.5m after 2 years.


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Suggested uses: Beds and borders, Bog garden, Coastal, Cottage/Informal, Waterside, Wildlife

Cultivation: Plant in damp, moist soil in full sun. Staking is advised particularly in windy locations.

Suitable for your garden?
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This plant likes... Garden match
Soil types: Clay, Loamy, Sandy Match unknown
Soil drainage: Boggy damp conditions, Moist but well-drained, Moisture-retentive Match unknown
Soil pH: Acid, Alkaline, Neutral Match unknown
Light: Full Sun Match unknown
Aspect: South, East, West Match unknown
Exposure: Exposed, Sheltered Match unknown
Hardiness: Hardy (H4) Match unknown

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Althaea officinalis

Comment from Miriam Mesa-Villalba

Marsh-mallow is a tall plant resembling a hollyhock. Some people consider it to be difficult to grow in the garden, but it is widely available from nurseries. The slimy roots used to be boiled to a jelly to make the confectionery named after it; in France dried marsh-mallow roots are still sold as a soother for teething babies to chew on.The name Althaea is derived from the Greek altho, meaning to cure - from its healing properties; whilst the plant family name Malvaceae comes from the Greek malake meaning soft, from the particular qualities of the mallow family in softening and healing.

  • Views: 143
  • Replies: 0
  • Posted: Sun. 7th June 2009 10:21

We list 16 suppliers who tell us they sell Althaea officinalis (Marsh mallow). In order to see the list you'll need to either register or log in as a full member.


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