This is a small genus, related to Strumaria and more distantly to both Nerine and Gethyllis. The dozen or so species are spread across southern African from the Cape to Namibia.
It is a deciduous genus which dies away totally in summer, when it should be warm and dry. By and large Hessea do not tolerate summer water, when they are dormant. Dry storage, without desiccating them, is needed. They re-emerge in early autumn with narrow deciduous foliage which lasts until after flowering. This is in spring, after which the whole plant dies away again to a small bulb.
They need a well-drained, sandy, compost and are best grown in pot culture under glass. The naturally small bulbs can be crowded in small containers if wished. Not frost hardy.
Available for ordering from Spring and Autumn lists.