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Coryphantha retusa
Scientific Name: Coryphantha retusa (Pfeiffer) Britton & Rose
Synonym: Melocactus mammillariaeformis, Coryphantha melleospina, Coryphantha retusa var. melleospina, Echinocactus cephalophorus, Mammillaria retusa, Mammillaria cephalophora, Cactus cephalophorus
Family: Cactaceae
Coryphantha  retusa
Coryphantha retusa at the Desert Botanical Garden in October
Recommended Temperature Zone:
USDA: 9b-11

Frost Tolerance: Hardy at least to 25 F (-4 C)

Minimum Avg. Temperature: 50F (10C)

Heat Tolerance: Light shade in summer in Phoenix

Sun Exposure: Full sun

Origin: Mexico (Oaxaca, Puebla)

Growth Habits: Generally clumping depressed spherical 4 inches (10 cm) in diameter; 0 central spines; 6 to 12( to 15) radial spines

Watering Needs: Water sparingly, needs good drainage. Keep drier in winter

Propagation: Seeds, offsets

Coryphantha  retusa

Blooming Habits:
The Coryphantha retusa has 1.5 inches wide (4 cm) cream or yellow flowers.

Fruiting Habits:

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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