Calendula seeds - Orange King - Seeds For Kids Ref: SUT140805 Features - Seed Squad character who is friendly, fun-loving and will encourage children's interest in gardening, Flowering Time - Mid June-September Height - 45cm (18")., I'm Carefree! Choose a sunny site in the garden, with weed free soil. Put each seed into the soil, about 13mm (½") deep. Lightly cover with soil and water them well. Help them grow be feeding with plant food and watering them when they need it. Sow between August and September to flower May next year. Price: £0.99 Quantity: