Winter purslane is an annual plant which provides salad leaves which are mild in flavour and heart-shaped, with small flowering shoots. Winter purslane is a hard annual as opposed to summer purslane which is half hardy. Despite looking almost dainty, this is a really tough plant. Alys Fowler recommends planting at the end of July in light, well-draining soil, perfect for our garden. Allow it to flower and it will self-seed and reappear in autumn or spring. Seedlings make a great addition to winter salads.