Echinopsis lageniformis seeds. Previously named Trichocereus bridgesii and commonly known as Bolivian Torch.
 
Bolivian Torch is native to Boliva. It has resemblance to the more common San Pedro cactus (trichocereus pachanoi) but typically has fewer, wider ribs and longer spines. This cactus has gained much popularity among cactus collectors in recent years, it has huge, white blooms that make it an attractive landscaping cactus.  It can reach fifteen feet in height and works well as a grafting stock for slower-growing cacti. Trichocereus bridgesii are known to be easy to grow from seed.
 
Seedlings are prone to turning purple if they are exposed to too much sun early if life, if this occurs, be sure to reduce their exposure.  
 
During the winter in areas where temperatures are too cold, plants will go dormant (stop growing). It can easily be over watered as with most cacti and should only be watered when the soil has dried out. Bolivain Torch will thrive in most places that are not high in humidity and without any care at all.