Sow direct where they are to grow or in trays of Yates Seed Raising Mix. Press lightly into surface - do not cover as seeds need light to germinate.
Choose a moist, shady position as plants and blooms will be at their best in these conditions. Add Yates Blood & Bone before planting and fertilise regularly with Yates Thrive Soluble Plant Food. Protect from snails and slugs with Yates Blitzem.
Water regularly at base of plants to prevent disease. Cut back after flushes of flowers to promote bushy growth.