<p>Turnip tops are a healthy, tasty green vegetable that will spice up any salad or stir-fry. Very rich in minerals and vitamins - wait until the flower buds are almost open to give a tinge of yellow to contrast with the dark green.</p><p>Sow seed quite thickly, directly outdoors as soon as the soil can be worked in the spring. Repeat seeding regularly for fresh plants, as they grow very quickly</p>