If you love vygies and waterwise gardening, Delosperma is one of those genera that quickly becomes addictive. These are mostly low, mat-forming succulents in the Aizoaceae, famous for their shimmering “ice” cells on the leaves and stems that catch the light like tiny crystals – a clever way of reflecting harsh African sun while storing precious moisture.

The genus is centred in southern Africa, with the bulk of species in South Africa and Lesotho, but stretching north into eastern Africa as far as Ethiopia and even into the Arabian Peninsula. Many are local endemics tied to specific rock types or mountain systems – from arid Karoo flats and grassland dolerite outcrops to subalpine Drakensberg cliffs. Seed capsules are typically hygrochastic: they open when wet, using little “valves” and wings to present or flick out the seed in rain – exactly the kind of detail that makes them fascinating subjects for a seed-focused collector.

In the garden, Delosperma species are valued for their carpets of daisy-like flowers in intense shades of magenta, pink, purple, yellow and orange, often over a very long season. Given full sun and sharply drained, sandy or gravelly soils, many species are remarkably drought tolerant and need little more than occasional watering once established. They are ideal for rockeries, retaining walls, containers, green roofs and banks where a tough, colourful, pollinator-friendly groundcover is needed.

For a succulent enthusiast in South Africa, Delosperma offers a huge palette of local biodiversity – from tiny, niche endemics to showy garden workhorses – all fitting neatly into the broader push toward waterwise, climate-resilient gardening.

Delosperma calitzdorpense – Calitzdorp Sheepfig

Named for the Little Karoo town of Calitzdorp, Delosperma calitzdorpense is a local treasure of the Western Cape, where it grows on gravel aprons and stony slopes in semi-arid succulent Karoo vegetation. It forms small, woody shrubs to around 20–25 cm high, with grey-green, slightly hairy leaves that flush greener after good rains. In season it carries beautiful white daisies with creamy-yellow centres, around 2 cm across, held proudly above the foliage.

This species is red-listed as Endangered, with much of its natural habitat lost to agriculture and other pressures. That makes every plant grown in gardens a small act of conservation. In cultivation D. calitzdorpense is surprisingly easy: it thrives in hot, dry, stony beds and looks superb spilling over rock edges or planted en masse on a sunny slope. The white flowers glow in late afternoon light and combine wonderfully with other Little Karoo succulents such as Glottiphyllum and Crassula species.

For South African gardeners wanting something truly local and special, Calitzdorp Sheepfig is a must-grow. Give it full sun, very sharp drainage and infrequent but deep watering, and it will reward you with a tough, long-lived shrub that laughs at drought. Seed sown on a gritty mix germinates well with warmth and light, and young plants can be grown on in pots before being planted out into Karoo-style beds and containers.