Marshmallow (Althaea officinalis)
Overview
Marshmallow (Althaea officinalis) is a downy perennial up to about 7 ft (2.2 m), with thick white roots, heart-shaped leaves, and pink flowers. Known for its high mucilage content, marshmallow soothes inflamed mucous membranes, including those in the respiratory, urinary, and digestive systems.
Traditional uses & properties
Demulcent & Emollient: Relieves dryness and irritation in the throat, lungs, stomach, and urinary tract. Diuretic & Kidney Soother: Supports passing kidney stones and eases burning urination when paired with other kidney herbs. Respiratory & Digestive Aid: Helpful for dry coughs, colitis, IBS, and ulcers. Galactagogue & Nourishing: Enhances breast milk production and is deemed safe as a mild food-like remedy.
Preparations & dosage
2–8 ounces 1–4 times daily
Dried root (1:5, 40% alcohol); 10–60 drops 1–4 times daily. Mucilage does not extract well in alcohol; the tincture is used to soften hardened lymph nodes.
1,000–5,000 mg up to 3 times daily
Up to 12,000 mg daily
Safety & precautions
Very Mild & Safe: Typically fine for children, infants, and the elderly. No Major Warnings: Generally considered gentle with minimal side effects.
Habitat
Originally from Europe, marshmallow is also found in the Americas. Preferring marshy soil or coastal areas, it is commonly cultivated. The aerial parts are gathered in summer when flowering begins, and the roots are dug up in autumn.