Agapanthus africanus was the first of its genus to be introduced to the European horticultural community by formal description in 1679.
It only occurs naturally in the winter rainfall fynbos veld of the Western Cape, from the Cape Peninsula as far as Swellendam where it grows in sandy, acid soil, often among sandstone rocks. The species is not considered to be threatened in its habitat early in the twenty first century.
A. walshii bearing pendulous flowers and grows in the Kogelberg region used to be a subspecies of A. africanus, now a species in its own right, while A. africanus has no recognised subspecies any longer.
There are ten species of Agapanthus, three in the fynbos. Several of them are endemic to South Africa, but some are renowned world travellers, occurring in many gardens and nurseries (Wikipedia; www.plantzafrica.com; http://redlist.sanbi.org).