Pot Marigold C. officinalis Compact plants, unusual bicolour Charming rounded plants are smothered with blooms. Easy to grow for beds, border edging and patio containers. Height: 20cm(8in) Plant Class: Hardy Annual (HA). Habit: Compact. Sow outdoors where they are to flower, 0.5cm (?") deep, directly into finely prepared soil which has already been watered. Seedlings usually appear in 7-21 days. Thin seedlings to 20cm (8") apart. Water well until plants are established. For a continuous display, make sowings at two to three weekly intervals. Late summer and autumn sowings will flower the following year.