Echinopsis is the most popular and widely grown genus from the family of cactus. This genus includes more than 100 species varying in size, shape and growing habits. Most of the species in the genus of Echinopsis grow in clusters of globular heads. In some species, these globular heads remain solitary whereas some species produce several offspring around globular heads.
Echinopsis are fast growing plants, and with age they change their shape from globular heads to elongated succulent stems. Old plants can grow into large clumps measuring more than 60 cm in diameter. At this age, most species of Echinopsis produce profuse flowers in spring and summer. The funnel-shaped flowers come in all shades of yellow, white, pink and orange. The best known flowers are borne on Echinopsis multiplex (sometimes described as Echinopsis oxygana).
Originally native to South America, Echinopsis multiplex is widely cultivated is many parts of the work for its lovely flowers. Though flowers last for a day or two, they appear in flushes several time during spring and summer – producing many flowers in each cycle. It is quite hardy plant that does not require special attention or growing conditions to thrive. Moderate watering, a regular soil mix with good drainage, and bright sunlight are more than sufficient for this hardy plant to grow. If kept dry, Echinopsis can easily withstand frost and cold.
Echinopsis can be propagated from offspring sown in spring or summer. The best and most sought after varieties of Echinopsis are Schick hybrids produced by the Huntington garden. These include (my favorites):
Echinopsis ‘Antares’, Echinopsis ‘Bacarole’, Echinopsis ‘Brigitte’s Beauty’, Echinopsis ‘Desdemona’ and many more.
Common names of Echinopsis are Hedgehog cacti, Sea-Urchin cactus or Easter lily cactus.