Packet of dried nettle, Urtica dioica, leaves on sale at White Witch, a shop in Waltham Abbey, Essex, January 2022.  Apparently nettles ‘reverse curse, ward off lightening [sic.] and add potency to spells’, all for £1.20.

Update: No longer on sale in the shop October 2022 or October 2023.

Updated 14 October 2022.