And while I’m on about saving seed, some years ago, we chanced upon a wild brassica growing at the back of a Devon beach, so took a couple of seed pods. Brassica oleracea is the parent of many ...

Brassica vegetables, such as broccoli and turnips are not only delicious, but they’re also healthy. Brassicas can be planted in seed trays or directly sown into their final growing position.