How to Prune cow wort?
Cut back after flowering

cow wort · Leonurus cardiaca
Also known as: lion's ear; lion's tail; motherwort
A deciduous, herbaceous perennial wildflower with deeply-lobed palmate green foliage and whorls of purple-pink to white flowers with purple-spotted lips around a central stem which appear in the summer. Known for it's historical use in medicine for heart-related issues and also a great source of nectar for pollinating insects. Honey made from the nectar of this plant has a strong, mint-like flavour
Cut back after flowering