Elegant Agapanthus are best grown in large terracotta pots or containers, in a sunny spot. Fill containers with loam-based soil, enriched with organic matter. Plant rhizomes 20cm deep and 15cm apart, ensuring they rest 5cm below the surface. Maintain soil moisture with regular watering, never allowing soil to become waterlogged. Sturdy stems of spectacular white or blue umbels will reach heights of 60-90cm in late summer. Only re-pot if the plants are pot bound. Half-hardy Agapanthus require crown protection during winter with a thick layer of straw or mulch. In colder regions, containers should be brought undercover for the winter months.