San Pedro Cactus | Trichocereus Pachanoi
San Pedro cactus is a sacred symbol among the various peoples of its native habitat, which stretches from the Andes of Peru to Bolivia to Ecuador. Trichocereus pachanoi / Echinopsis pachanoi is also tolerant of a wide variety of conditions and can handle more water and fertilization than most cacti, making it a good cactus species for beginners. Trichocereus pachanoi is a small spines also make San Pedro Cactus easier to handle for those who are not experienced with dealing with sharp spines or those who have curious kids or pets that may be injured by larger spines. Additionally, San Pedro cactus is a rapid grower, making it a favorite grafting stock for speeding up the progress of slower-growing cacti such as Astrophytum and Ariocarpus. Under ideal conditions, San Pedro cactus can grow up to 18 inches per year and will readily shoot off new pups.
Frost hardy to about 5 celsius. Trichocereus pachanoi can be watered frequently during the summer months, sometimes as often as every two days if the top inch or two of the soil is dry. During the winter, your San Pedro cactus should be slowly acclimated to cool, dry, dark conditions to avoid stretching that could damage the aesthetics and structural integrity of the plant. When breaking dormancy in the spring, a reverse process of slowly introducing the factors necessary for growth may be beneficial for the same reason. For optimal skin colour, Trichocereus pachanoi should be kept in partial rather than full sun and the soil should be well-draining and rich in organic nutrients and minerals. T. Pachanoi blooms are large, white and have a strong, pleasant perfume.
These are all very large and thick cacti.