Sow where they are to grow or in trays of Yates Seed Raising Mix, firm down and keep moist.
Grow in sun or semi-shade. Enrich soil with organic fertiliser (such as Yates Blood & Bone or Dynamic Lifter) before planting. Feed plants regularly with Yates Thrive Soluble Plant Food. Continuous harvest promotes new growth. Protect plants from snails and slugs with Yates Blitzem.
Good watering and fertilising will prevent leaves from becoming too bitter.