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Marsh Mallow Althaea officinalis 

 
 
Attracts BeesBees are attracted to this plant
Attracts ButterfliesButterflies are attracted to this plant
Perennial Life CyclePerennial life cycle
Cup-Shaped FlowersCup-shaped flowers
White FlowersWhite flowers
5 Petals5 petals
Aug-Sep Flowering
period
Lobed LeavesLobed leaves
Hairy-Edged LeavesHairy-edged leaves
Round StemRound stem
Tap RootTap root
150cmMaximum height
 
 
  Main image of Marsh Mallow

© 2020-2025 Adrian Briggs

 

Marsh Mallow is a native perennial plant of the UK, typically found growing in coastal areas and waste ground, to a mature height of up to 150cm.

Marsh Mallow is distinguished from other mallows by: its intermediate height (up to 1.5 metres); downy green stems; triangular-shaped and pointy-lobed leaves; and pale, cup-shaped flowers. Marsh Mallow was used in traditional herbal medicine to sooth irritation in the mouth and upper gastrointestinal tract. Its roots have also been used to flavour desserts and sweets, including the original form of marshmallow.

Botanic classification and naming: Marsh Mallow is a member of the Mallow (Malvaceae) family. The genus name 'Althaea' identifies the plant as a Marsh Mallow and its species name 'officinalis' means 'herbal medicinal plant'.

Benefits: Provides a food source for caterpillars of the Painted Lady butterfly.

Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.

 

 
Flower of Marsh Mallow

© 2021 Adrian Briggs

 

Flowers:
Marsh Mallow usually flowers between August and September.

Flower colour:

Flower Colour White

White

Flower shape:

Flower Shape  Cup

Cup

Petals:

Petal Number =  5

5

Leaf of Marsh Mallow

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Lobed

Lobed

Or:

Alternative Leaf Shape is Spearhead

Spearhead

Leaf Margins:

Leaf Margin is hairy

hairy

Stem of Marsh Mallow

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Round

Round

Root type:

Root Type is Tap

Tap