You'll often hear this being talked about by gardeners, especially at this time of year: but what is it, and why do we do it? There are various theories about…
Requires full sun and well drained soil. Is fully hardy. Wear gloves as all of the plant is poisonous (although the roots are the most toxic). Shade tolerant.
By seed or by division in early spring or autumn.
Pests, diseases or disorders
Fungal stem rot, Verticillium wilt and aphids may be a problem.