Plants in genus espostoa
Espostoa lanata
Espostoa lanata, commonly known as the Peruvian Old Man Cactus, is a slow-growing, tree-shaped cactus native to the arid regions of Peru. It is characterized by its dense, hairy appearance, resembling a warm woolly coat. This cactus can reach heights of 5 to 23 feet and blooms in late spring to early summer. It thrives in well-draining soil with infrequent watering and bright, indirect light. The plant is non-toxic to humans and pets, though its spines can cause irritation.
Espostoa melanostele
The Espostoa melanostele, commonly known as the Peruvian old lady cactus, is a tall, columnar cactus with a distinctive greyish-green color and dense white hair that increases with age. It thrives in sunny environments and requires well-draining soil, often enhanced with pumice or perlite. This cactus is drought-tolerant, needing minimal watering and preferring dry periods between waterings. It is hardy in zones 9b to 11 but can be damaged by temperatures below 40°F. The plant is characterized by rows of yellow needle-like spines and a hoary appearance due to its apical spination and pubescence.
Espostoa senilis
Espostoa senilis is a South American cactus with a cylindrical shape and dense white spines, capable of reaching up to 10 feet tall. It blooms in spring and summer, producing flowers that add a touch of color to its striking appearance. This cactus thrives in bright indirect sunlight and well-draining soil, making it a resilient choice for arid gardens.
Espostoa mirabilis
Espostoa mirabilis is a candle-like cactus with thorns and white hair, known for its white to off-white flowers in spring and summer. It requires regular watering in summer and minimal watering in winter, thriving in full sun. This cactus is prone to root rot if not planted in well-drained soil and is not tolerant of prolonged cold below 40°F.