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Description: Clumping
cactus.
Stems: Blue-green up to 6 cm in diameter, spherical, sometimes
becoming somewhat cylindrical.
Spines: Radials 50-10 (or more numberose), white, hairlike, 8 -
20 mm long, with one, occasionnally two, short hooked centrals , reddish
brown, 5 - 10 mm long.
Flower: Funnelform, creamy yellow to pale pinkish,, 13 - 22 mm
(0.5 - 0.9 in) long, to 15 mm (0.6 in) in diameter in spring and summer.
Fruit: Cylindrical, rosy-pink to red 2,5 cm long in summer.
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Cultivation: It is a
rapidly growing species
. Water regularly in summer, but do
not overwater (Rot prone)
Use pot with good drainage and a very porous potting media.
Keep dry in winter.
Feed with a high potassium
fertilizer in summer.
It is quite frost resistant if kept dry, hardy as low as -5° C (some
reports give it hardy to -12°C) Outside full sun or
afternoon shade, inside needs bright light, and some direct sun.
Easily clustering and easily flowered. Most plants will offset readily,
and clumps can be produced in a very few years.
Propagation: Division, direct sow after last
frost.
Picture of
conspecific taxa, varieties, forms and cultivars:
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