Description: Small
globular-flattened cactus.
Stems: Dark green, spherical up to 15 cm in diameter. It has 20
ribs spirally arranged with raised tubercles between which the areoles
appear.
Spines: Arranged like little spiders, brownish, turn greyish
eventually.
Flowers: Deep red.
Cultivation: It is a summer grower
species that offers no cultivation
difficulties. Water regularly in summer (but do not
overwater ) needs good drainage and very porous, keep rather dry
in winter.
Feed with a high potassium
fertilizer in summer.
It is quite frost resistant if kept dry (hardy to -12° C).
Need a bright exposure, full sun
or half shade in summer.
Propagation: Direct sow after last frost, offsets
(if available)
Conspecific taxa,
varieties, forms an cultivars:
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