Origin and Habitat: Garden origin (Nursery produced cultivar)

• Echinopsis cv. Yellow California
• Trichocereus cv. Yellow California
• х Trichopsis cv. Yellow California

Description: Echinopsis cv. Yellow CaliforniaSN|18370]]SN|18370]] is a large sized cultivar hybridized by Hans Britsch.
Habit: Columnar growth up to 12 cm in diameter.
Flowers: It has bright yellow flowers with golden-yellow on the inner petals and some burnt orange on back petals and a lighter yellow throat.
Note: There are several clones with flowers ranging from 12 to 20 (or more) cm in diameter.

Cultivation and Propagation: Trichocereus hybrids are very easy to grow and cold tolerant, as low as -5°C (or less depending on clone). They need a fertile, well drained soil mix. Water the plants well and allow them to dry before watering again. This cultivars seem to do better with a little more water than most cacti. In fact, their cultivation requirements are really more like 'normal' plants than most other cacti. During the growing season fertilize them monthly with a balanced fertilizer
Sun Exposure: Outside full sun, but during hot summers the cactus are subject to sun burning, so grow them in light shade. Inside they need bright light, and some direct sun. During winter months, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter, as they will etiolate, or become thin, due to lower levels of light. They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. They tend characteristically towards black rotted spots unless watering is moderate and only in hot weather. If kept damp through cold periods, they will invariably suffer.
This plants produces large amounts of growth each year if kept well fed and watered throughout the warmest months, particularly if they have been acclimatised to accept full sun. Once these cactus are established they can easily produce 10cm (or more) of growth every year.
Propagation: By cutting.