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 deilanthoides

Delosperma deilanthoides is a highly localised South African endemic from Mpumalanga, known particularly from the Steenkampsberg region. It is a perennial succulent subshrub that clings to rocky slopes and outcrops in montane grassland, enduring mist, frost and strong winds. This species has attracted conservation concern and is listed as Vulnerable because of threats from mining, infrastructure development and invasive plants in its limited range.

In cultivation, D. deilanthoides brings the charm of a rare, high-altitude Delosperma into the garden. Its compact, shrubby habit and bright flowers make it ideal for rock gardens and cool, high-rainfall beds where drainage is excellent. Because of its conservation status, growing it from seed for ex-situ collections and private gardens is an important way to secure the species’ long-term future.

For South African buyers who value conservation-minded gardening, this is a very special species to cultivate. Treat it like a mountain vygie: full sun, cool air, perfectly drained, gritty soil and moderate summer watering. Seed should be sown thinly on the surface of a sandy mix, with just enough moisture to germinate. Once established, plants will reward careful growers with a tough, compact shrub that brings a little piece of the Steenkampsberg into their own garden.