Kohl Rabi are easy to grow and store well. You can eat the leaves, and the bulb is crunchy with a delicate, sweet taste.
Provided you know how to harvest it properly, kale is not tough or bitter. Even the flower stems are edible and delicious.
One vital ingredient of winter salads is rocket (arugula). The ‘wild’ variety, can be grown all year round in a polytunnel (high tunnel) or cloche.