Above: My January sown Mizuna growing at Buttervilla in 2007. This Japanese brassica is a good staple salad leaf and makes an excellent winter crop in the tunnel. It is very easy to grow all year round and seed germinates quickly - I sowed some on 11th of March and seeds had germinated in a week. Leaves are glossy, green and serrated with a mild, peppery flavour. I use it as a cut-and-come-again crop and it will keep on producing for several months. If left to go to seed it throws up dainty yellow flowers, also edible with a subtle mustard flavour.