This is a hardy succulent that has dark green leaves, it is the tallest and darkest sansevieria. The leaves grow up to three feet long and up to 1 inch wide.  When grown in low light the color of the leaves is almost black.  Feed every month throughout the summer with a general-purpose fertilizer that is diluted to one-half the strength suggested on the container.   This plant has air-cleaning capabilities by removing formaldehyde, xylene, and trichloroethylene from the air.  This plant can be mildly toxic to humans, cats, and dogs.
 
- Plant indoors with low light.  Bright light will bring out the colors in the leaves and may cause the edges to turn yellow
 
- Best in well-drained cactus soil
 
- Water once a week, allow the soil to dry completely.  Discard the water in a saucer after each watering.  Never allow soil to become soggy.
 
- Average room temperatures
 
 -Native to Africa