Mizuna red empire f1the ultimate cut and come again oriental salad leafthe mizuna is one of the most popular and easy to grow of the oriental leaves. The variety red empire has striking dark red upper leaves with lime green undersides and stalks. Mizuna plants will grow through winter in a cold greenhouse, harvesting from january to december. F1 vigour and performance. Height 21 30cm 8 12 spread 11 20cm 4 8.the red empire tastes like a peppery, but slightly less spicy rocket or mustard. Use this variety like a rocket and add a burst of colour to salads and sandwiches or leave to grow larger and used in stir fries.