Brassica rapa var. perviridis. Often known as mustard spinach, its leaves are tender and mild. Komatsuna Green mustard seeds can be used as a cut-and-come-again crop at any stage of growth. Use steamed or stir-fried or in salads and soups. This is a traditional ingredient in Japanese cooking. It features excellent bolt resistance and cold tolerance so can be grown all year round. Green Komatsuna is one of the greatest vegetables. It's delicious raw or cooked - try a bunch of leaves as a salad on their own, or toss some leaves into a soup or stir-fry. It works in containers, and it's very cold hardy, so you can grow it all winter long if you provide some protection from hard frost.

Matures in 21 days. (Open-pollinated seeds)

• Enjoy raw, steamed or stir-fried
• Cold tolerant
• Excellent bolt resistance
• Open-pollinated seeds
• Matures in 21 days