Motherwort


Family: Lamiaceae - Genus: Leonurus - Species: L. cardiaca

Other names: Lion’s Ear, Lion’s Tail, Throwwort

Quick facts

Uses
  • Medicinal
  • Tea
Edible parts
None
Type
perennial herb
Flowers
Jun–Aug
Height
60–150 cm
Native to
Europe and central Asia
Habitat
field edges, waste ground, woodland edges
When it flowers 1,561 photos of it in flower across North America, by month, from iNaturalist, as of October 2026
Observations in flower by month
MonthObservations
January0
February0
March0
April1
May24
June797
July522
August133
September53
October23
November8
December0

Motherwort is a tall, rangy member of the mint family that grows along fences, at field edges and in neglected corners of farms. In summer it's covered in little pink flowers and buzzing with bees.

Its Latin name says a lot about its history. Leonurus means "lion's tail", after the shape of its flower spikes, and cardiaca refers to its use as a herb for the heart.

How to spot it

  • Lower leaves are deeply cut into three to five pointed lobes, a bit like a hand or a maple leaf. Leaves higher up are narrower, with three points.
  • Stems are square, often purplish, and grow 60–150 cm tall.
  • Flowers are small, furry and pink to pale purple. They grow in rings around the stem at each pair of upper leaves.
  • Seed heads have sharp, spiny tips. Wear gloves if you handle the plant in late summer.

What it's good for

Motherwort has been a herbalist's favourite for centuries. A bitter tea or tincture of the flowering tops is a traditional remedy for anxiety, a racing heart and period pain. As the name suggests, it's especially known as a herb for women's health.

Modern research is limited. The bees, though, have no doubts about it.

Gallery


Where it grows


All year

Loading map…

Fewer records More records

Each hexagon shows how many times Motherwort has been recorded there, from herbarium specimens, surveys and iNaturalist photos. Gaps can mean nobody has looked, not that the plant is absent.