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 dunense

Delosperma dunense is a perennial succulent from the Aizoaceae family, endemic to the Eastern Cape where it grows in sandy, subtropical coastal habitats. It forms low, spreading clumps of fleshy leaves on short stems, perfectly adapted to shifting sands, wind and bright coastal sun. The plants hug the ground, stabilising soil and trapping precious moisture.

In season, D. dunense produces neat, daisy-like flowers that sit just above the foliage, creating a soft but eye-catching display in sandy beds and coastal rockeries. Flowering is mainly in the warmer months, with flushes after good rain or irrigation, making it a dependable summer performer in coastal gardens. Even out of flower, the tight clumps of succulent foliage give a clean, textured look.

For South African buyers near the coast, this species is tailor-made for waterwise dune-style planting. Give it full sun, very sandy, sharply drained soil and occasional deep watering, and it will thrive where many other plants struggle. From seed it is straightforward: sow on the surface of a gritty mix, keep just moist until germination, and then gradually accustom seedlings to harsher, brighter coastal conditions.