Claytonia perfoliata) is a superb green for the winter months. Young leaves are heart-shaped, but as they mature they become more rounded and envelop the flower stem so that the flower looks like it grows straight out from the middle of the leaf. Leaves are typically no more than 20mm wide, but are produced in abundance throughout the cooler months. They’re packed with vitamin C, chlorophyll and omega-3 fatty acids, and taste like a sweeter version of spinach. The flowers are edible too. Plants are usually found in the herb section at garden centres, or you can sow seeds directly in the soil. As the seed is tiny, sprinkle onto the soil surface and firm down gently, but don’t cover.