Hardy Ice Plant
The species Delosperma floribundum is native to high altitude rockeries in South Africa.
Here’s the background:
We owe the introduction of D. floribundum 'Stardust' to botanist Panayoti Kelaidis of the Denver Botanic Gardens (Colorado, USA), who went on an expedition to the Drakensberg in 1994 and was drawn to the incredible pink marks in the evening light.
He took a a pinch of seeds and, the following May, sowed them in the greenhouses of the Denver Botanical Garden. Less than a year later, the plant came on to the North American horticultural market and, in 1998, was introduced into the ornamental varieties catalogue with support from Plant Select (*). A pretty fast-track selection!
Let's look a bit more closely at this plant.
Delosperma floribundum 'Stardust' presents a slightly woody, shrub-like habit, which tempers its ground-cover effect compared with the other Delosperma species.
Its succulent, fleshy, green leaves, with silvery highlights are evergreen in winter and semi-deciduous in harsher climates.
It produces big, intensely pink solitary flowers with a white centre about five centimetres in diameter which appear from June until the end of September (or maybe until the first frosts).
As Delosperma floribundum 'Stardust' comes from a mountainous environment, it has good resistance to the winter cold and to warm, dry conditions in the summer. It is worth noting that too much winter dampness will cause the plant to perish.
Its long, colourful flowering, easy cultivation and moderate growth make it a great plant to grow in a rockery border or a gravel garden, or in a pot, trough or planter. You might also plant it in a gap between two stones in old wall and create a cascade effect.
In winter time it will appreciate a generous application of gravel mulch around the collet to protect it from too much moisture. In a damp climate, you can grow it in pots to be overwintered in a veranda or cold frame.
Grow in full sun in poor, light, very well-drained soil. Avoid organic mulch.
(*) Plant Select® is a non-profit collaboration of Colorado State University, Denver Botanic Gardens and professional horticulturists mission is to seek out and distribute the very best plants for landscapes and gardens from the intermountain region to the high plains and beyond (Western United States).
Learn more at: http://plantselect.org/
- 0,4L pot
- Hardiness zones : zone 7-10
- Height: 10 to 30cm
- Plant spacing: 30 cm
- Flower colour: pink
- Flowering period: summer flowers