The Arum Lily, sometimes called the Calla Lily, is a little deceptive. For one thing, Arum is not a lily, and its “flower” is not a flower. Instead the curled snow-white “bloom” is a funnel-shaped leaf or spathe, and the plant’s minute flowers are clustered close together on a centre spadix. The plant, indigenous to Southern Africa, loves moving water, so will thrive near ponds, water-features or in damp areas of the garden, provided the water is in motion, so regular watering needs to be linked with good soil drainage. Hybrids have meant the spathe colours have expanded to include dramatic contrasts of colour which make the Arum Lily even more stunning when it flowers during summer and early autumn.