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 deleeuwiae

Delosperma deleeuwiae is a high-altitude species with a scattered distribution in southern Africa, recorded from Lesotho and parts of the Free State and KwaZulu-Natal. It typically grows on cold, rocky slopes at considerable elevation – some horticultural material originates from around 3 200 m in Lesotho – where it faces snow, frost and intense UV radiation. Plants form low mats or small clumps of succulent foliage and in season bear lovely lilac-purple daisies that light up the mountain turf.

In gardens this species is prized by alpine and succulent enthusiasts for its combination of cold-hardiness and floral beauty. It is perfectly suited to raised rock gardens, stone troughs and exposed, well-drained slopes in cooler parts of South Africa, where it shrugs off winter frost that would damage many other succulents. The lilac flowers make an excellent contrast against grey stone and gravel mulches.

For South African buyers in colder climates – from the Drakensberg foothills to frosty Highveld gardens – D. deleeuwiae offers a hardy, colourful alternative to more tender vygies. From seed, treat it as a true alpine: sow on a gritty mix, keep cool and bright, and avoid excessive warmth and humidity. Once seedlings are robust, move them into full sun with excellent drainage and sparing summer watering. The result is a tough, mountain-bred Delosperma that will bring a touch of Lesotho’s high peaks into your own backyard.