
Echinopsis pachanoi
Echinopsis pachanoi, known as the San Pedro Cactus, is a fast-growing columnar cactus native to the Andes. It is distinguished by its dark green stems with 4 to 9 rounded ribs and generally very short or absent spines in adult specimens. It produces spectacular, large white flowers that usually open at dusk and have a fragrant aroma to attract nocturnal pollinators like moths and bats.
It belongs to the Cactaceae family and is native to mountainous regions between 2,000 and 3,000 meters altitude in countries like Peru and Ecuador. Its structure is robust and branched from the base, capable of reaching several meters in height in its natural habitat. It adapts extraordinarily well to various domestic climates as long as soil drainage is optimal and it receives strong direct solar radiation.
It is highly valued in xerophytic gardening for its hardiness and sculptural form. Historically, it has been used by various indigenous cultures in medicinal and spiritual rituals due to its high concentration of mescaline, a potent psychoactive alkaloid. In the home, it is considered one of the easiest cactus species to maintain, making it ideal for beginners due to its drought tolerance.
Every 15-20 days in summer; suspend completely during winter.
Direct sun minimum 6 to 8 hours daily to flower.
Ideal between 15°C and 30°C; tolerates brief frosts if dry.
Very porous cactus mix with sand, gravel, and little humus.
Specific cactus fertilizer once a month in spring.
Examples shared by the community when the plant was in bloom
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