The genus Echinopsis contains over 100 species of cacti from South America. In addition to the many species, there are hundreds of hybrids available in a multitude of colors. The common name for Echinopsis is Sea Urchin cactus or Easter lily cactus. When young, most are globular and as they age, they become columnar.
In Arizona, Echinopsis hybrids need light shade, but in other regions, most species can take full sun. Unlike many cacti, it has a large root system and likes a lot of room to grow, so it shouldn’t be potted in tight pots as with other cacti. I like to place my Echinopsis in my garden under the dappled light of a Palo Verde tree canopy. The ones I have planted there are doing very well.
In the 1930s and 1940s, Harry Johnson of Paramount, California created many of the Echinopsis hybrids that are available today. Echinopsis hybrids are very easy to grow. The pups produced will be identical to the parent, so if you find a hybrid that you like, you can be sure that the flowers that come from the pups will be true to the parent. It is also easy to grow Echinopsis hybrids from seed, but there is no guarantee that the flower will be the same. In fact, the flowers can be completely different in color and shape.