Thelocactus conothelos
Scientific Name: Thelocactus conothelos (Regel & Klein) F.M. Knuth
Synonym: Echinocactus conothele, Echinocactus conothelos, Echinocactus saussieri, Echinocactus smithii, Gymnocactus beguinii var. smithii , Gymnocactus conothele, Gymnocactus saussieri, Neolloydia smithii, Pediocactus smithii, Thelocactus conothele, Thelocactus panarottoanus, Thelocactus saussieri, Thelocactus smithii, Torreycactus conothele
Family: Cactaceae
Thelocactus conothelos at the Desert Botanical Garden in January
USDA: 8b-11
Frost Tolerance: Hardy in Phoenix to 15-20° F (-10 to -7° C) depending on the clone
Heat Tolerance: Afternoon shade in summer in Phoenix
Sun Exposure: Full sun
Origin: Mexico (Tamaulipas, Nuevo Leon, San Luis Potosi)
Growth Habits: Columnar cactus, usually solitary, up to 1 foot tall (30 cm), 6 inches wide (15 cm)
Watering Needs: Moderate water
Propagation: Seeds
Blooming Habits:
The flower of the Thelocactus conothelos has several possible colors: deep pink with orange base, or yellow-orange (var. aurantiacus) 3 inches in diameter (7 cm).
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