Polystichum luctuosum is a lovely small fern that's closely related to the popular Polystichum tsus-simense and Polystichum mayebarae. In fact, the only difference is that the fronds of Polystichum luctuosum are divided twice instead of three times. In the wild, Polystichum luctuosum can be found streamside, often growing on alkaline rocks between 2,000' and 6,000' elevation in Japan, Korea, China, and, yes, South Africa. Polystichum luctuosum forms a 1' tall x 2' wide evergreen clump of finely divided, silvery-green fronds. Slightly moist to average soil moisture is best.