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Ball Silverstone

Argyroderma testiculare

Ball Silverstone
Photo: Leonora Enking, CC BY-SA 2.0

Argyroderma testiculare is a small, rare South African succulent from the Ice-plant family that grows no taller than about 15 cm, with thick, egg-shaped leaves. It is native to quartz gravel flats in the Knersvlakte and needs full sun, very sharp drainage and very little water.

Family
Aizoaceae (Ice-plant family)
Grows as
Succulent
Light
Full sun
Water
Water sparingly during the growing season and let the soil dry out completely between waterings; keep dry in the dormant season.
Soil
Very gritty, fast-draining mix such as cactus compost with added grit, sand or fine gravel.
Temperature
Tolerates hot, dry conditions; protect from frost, roughly below 5 °C.
How easy
Hard
Native range
W. Cape Prov. (Vanrhynsdorp Distr.)
Climate
desert or dry shrubland

About

Argyroderma testiculare (Afrikaans: bokklootjies) is a species of succulents endemic to the quartz gravel of the Knersvlakte region. of South Africa's Western Cape. It belongs to the Aizoaceae family, and is listed as rare on the SANBI Red List, because it occurs in an area smaller than 68 km2, but it is not endangered there.

It is a small plant that does not grow larger than 15 cm. The leaves are thick and look like an egg which has been chopped in half. The flowers are purple with a yellow centre.

Other Argyroderma plants

Baby Bottoms

Text excerpted from the Wikipedia article Argyroderma testiculare by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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