Peruvian Old Man Cactus
Scientific Name: Espostoa lanata (Kunth) Britton & Rose
Synonym: Cactus lanatus, Cereus dautwitzii, Cereus lanatus ssp. sericatus , Cereus lanatus, Cereus sericatus, Cleistocactus lanatus, Espostoa dautwitzii, Espostoa lanata var. sericata , Espostoa laticornua, Espostoa procera, Espostoa sericata, Oreocereus lanatus, Pilocereus dautwitzii, Pilocereus lanatus
Family: Cactaceae
Sunset®: 12-24
USDA: 9b-11
Frost Tolerance: tolerates down to 25°F (-3°C) for short periods, but frost should still be avoided.
Heat Tolerance: Protect from the heat and direct afternoon sun in Phoenix, does not like Phoenix summer heat
Sun Exposure: Full sun to light shade
Origin: Southern Ecuador, northern Peru
Growth Habits: Tree shaped cactus, slowly growing to 10 feet tall (3 m) or more, stems are 4 inches in diameter (10 cm)
Watering Needs: Rot prone in winter, keep it dry
Propagation: Seeds
The name of the genus, Espostoa, comes from the Peruvian botanist Nicholas Esposto.
Blooming Habits:
The Peruvian Old Man Cactus has nocturnal flowers, 2 inches in diameter, white to purple in late spring, early summer.
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