Coryphantha cornifera subsp. radians
Sea-urchin cactus
This is a very variable species, normally solitary, rarely sprouting. Its stem is flat globose to cylindrical, up to 8-15 cm in diameter, 6-12 cm tall, dull olive-green, apex depressed, with a blunt, depressed apex covered with wool. Most of the plants develop the central spines only at the age of 7 to 15 years.They are very adaptable houseplants and will thrive in a range of indoor conditions.
Contributed by @Putzy
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Full sun
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Very little water
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A little frost hardy: 32F (0°C)
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Light and free draining
Common name
Sea-urchin cactus
Latin name
Coryphantha cornifera subsp. radians
type
Succulent
family
Cactaceae
ph
5.0 - 7.0 Acid - Neutral
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Light
Full sun
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Frost
A little frost hardy: 32F (0°C)
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Soil
Light and free draining
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Water
Very little water
Plant & bloom calendar
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Best time to plant
full grown dimensions
0.60 M
0.50 M
Coryphantha cornifera subsp. radians
This is a very variable species, normally solitary, rarely sprouting. Its stem is flat globose to cylindrical, up to 8-15 cm in diameter, 6-12 cm tall, dull olive-green, apex depressed, with a blunt, depressed apex covered with wool. Most of the plants develop the central spines only at the age of 7 to 15 years.They are very adaptable houseplants and will thrive in a range of indoor conditions.
Propagation
From Early Spring TO Late Winter
The most common form of propagation for succulents is called vegetative propagation. This involves cuttings, where several inches of stem with leaves are cut, allowed some time to heal and after healing produce a callus. After a week or so, roots should grow. Another method is division which involves uprooting an overgrown clump and pulling the stems and roots apart. The easiest method is to allow the formation of a callus from a leaf or segment.
Planting
From Early Spring TO Early Spring
Succulents need good draining soil. When planting in the garden, make sure the area drains well and is not in a hollow that remains wet. Specially prepared cactus soil can be purchased for planting in pots or incorporate sand, gravel or volcanic rock for better drainage. The container you are planting in should have a drainage hole and it is wise to put crushed rock at the bottom before your planting medium.
nicky-k