Echinopsis pachanoi f. cristata
Crested San Pedro Cactus
Trichocereus pachanoi f. cristata
Echinopsis pachanoi f. cristata is a rare, crested form of Echinopsis pachanoi. The stem is fan-shaped, pale to dark bluish-green or green, forming with time imposing, brain-like mounds up to 3.3 feet (1 m) in diameter and height. The whitish areoles may produce up to 7 dark yellow to light brown spines up to 0.8 inch (2 cm) long. White flowers open at night and are produced at the end of the stems. They are large, up to 9.6 inches (24 cm) long and up to 8 inches (20 cm) in diameter.
USDA hardiness zone 8b to 10b: from 15 °F (−9.4 °C) to 50 °F (+10 °C).
How to Grow and Care
If you can grow cacti and succulents successfully, you can likely grow the Echinopsis species without too much trouble. Like many cacti, they prefer a drying period between waterings, even to the point where they slightly wilt. When you water, however, you should water deeply. The plant will noticeably plump up. It’s imperative that the cactus is not exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Lastly, make sure to fertilizer during the growing season for the best results.
Echinopsis can be easily rooted from offsets, which tend to cluster around the base of the mother plant. Cut offsets close to the stem, at the narrowest possible place. When rooting cacti from cuttings, let the fresh cutting dry out slightly on a paper towel and cut the cacti at the narrowest place possible. After a few days to a few weeks, depending on the size of the cut surface, the cut surface should have dried out and formed a callous, or slightly rough opening. Once the callous has formed, place the cutting in a rooting mixture of fast-draining cacti soil… – See more at: How to Grow and Care for Echinopsis
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