It was one stem about 8" / 20cm tall in a standard 1 gallon / 4 liter black plastic nursery pot when it went in there. That is flowering size for this type of plant, and they only get better. That was about 15 years ago.
Taxonomisists have lumped Trichocereus into Echinopsis. Both have large, long-tubed flowers that open around 10 pm at night throughout the warm season. To a hobbyist, Echinopsis are clumping, low globular plants, and Trichocereus mostly clumping, columnar plants. Some sprawl on the ground, and a few species are very large, branching columnar cacti.
Lobivia also got lumped into Echinopsis. They are small globular cacti, often solitary, with large, short-tubed flowers that open with sunshine, and often have a shiny black ring in the throat.
All Echinopsis are very easy to grow and flower if they get enough light. Being night-bloomers, they are thought to be moth pollinated, and many have a great citrusy fragrance.
By the way, the Show and Sale of the Austin Cactus and Succulent Society is this weekend at Zilker Botanical Gardens in Austin, Texas. There will be a lot of flowering cacti for sale.
Last edited by estación seca; 04-17-2016 at 01:55 PM..
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