Sorrel spinach or perpetual spinach looks a lot like spinach and is used in the same way in cooking. Like sorrel, it emerges early in spring and is one of the first leafy vegetables to garnish our plates. Its mild flavor is reminiscent of spinach with hints of sorrel acidity. It is best to remove flower stalks as soon as they appear, because the seed germinates easily and can invade the garden. The shoots are also more tender if the plant is prevented from flowering. Harvesting is done all year round, as needed, with new leaves continually growing back until fall.
