Echinopsis pachanoi
The San Pedro cactus is very easy to grow in most areas. Because it grows naturally in the Peruvian Andes Mountains at high altitude and with high rainfall, it can withstand temperatures far below that of many other cacti. It requires fertile, free-draining soil. They average half a meter per year of new growth. They are susceptible to fungal diseases if over-watered, but are not nearly as sensitive as many other cacti, especially in warm weather. They can be sunburned and display a yellowing chlorotic reaction to overexposure to sunlight.
Disocactus × hybridus
Disocactus" × "hybridus is a hybrid between "Disocactus phyllanthoides" and "Disocactus speciosus". It is perhaps the most commonly grown orchid cactus and seems to survive and flower under most conditions. It has a very complex taxonomic history and has been mistaken for "Disocactus ackermannii" for a long time. The name "Cactus jenkinsonii" McIntosh (1829) might be an older name, but there is no combination under "Disocactus".