How to Prune common sorrel?
Cut back after flowering. Cut back prior to seed setting to avoid self-seeding

common sorrel · Rumex acetosa
Also known as: garden sorrel; green sauce; patriot's blood; sharp dock; sorrel dock; sour leek; sorrel; sour dock; sour grass
The green foliage of the herb sorrel has a tangy taste with little hints of citrus. It is often used in salads or cooked like spinach. It was once considered a vegetable, but it is now seen as a wild food plant. It is usually found on cliffs and coastal dunes.
Cut back after flowering. Cut back prior to seed setting to avoid self-seeding