Althaea officinalis - Marsh Mallow

Phylum: Magnoliophyta - Class: Equisetopsida - Order: Malvales - Family: Malvaceae

Marsh Mallow Althaea officinalis, closeup of flowers

Favourite sweets: Marshmallows. Favourite wildflowers: Marsh Mallows. Coincidence? Certainly... in fact they are both obtained from one and the same plant, Althea officinalis.


Marsh Mallow grows up to 1.5 metres in height and its lovely flowers are very pale pink and, at about 4cm diameter, slightly smaller than the flowers of Common Mallow Malva sylvestris. The triangular, downy grey leaves are soft and pleasant to the touch.

Marsh Mallow Althaea officinalis,  Dorset, England


In Britain, Ireland and other parts of Northern Europe Marsh Mallow blooms from August to September; it is most often found in the coastal areas of the south and west of England and Wales. This plant is also spread throughout much of the western Mediterranean region, and there it flowers from July onwards.


The favoured habitats of Marsh Mallow are coastal wetlands and saltmarshes.

Blooming Times

In Britain, Ireland and and other parts of Northern Europe Marsh Mallow blooms in August and September.

Marsh Mallow plant, Dorset coast


The delightful pink and white marshmallow sweets are probably this wildflower's main claim to fame. The mucilage of the roots is the ingredient contributed by this grey and woolly-looking plant, and to this sugar, egg whites and vanilla are added. Throughout history various parts of this plant have also been used for a range of oyjer purposes including as an aphrodisiac; to make potions to cure aches, pains and hangovers; and as poultices to draw out bee stings and other insect stings. (We strongly advise against eating or using as medicines any plants without first obtaining qualified professional advice.)


Althea, the genus name, may come from the Greek althos, meaning 'healing'. The specific epithet officinalis means official and indicates that this plant is (or was) considered to have pharmaceutical properties.

The fruits of the Marsh Mallow plant have also attracted attention. They are rounded, and as a result the plant has been called Billy Buttons, Cheeses, and even the Pancake Plant.


Pictures of Althaea officinalis on this page are shown by kind permission of Anne Horsfall.

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