Agave tequilana planting these shoots; this has led to a considerable loss of genetic diversity in cultivated blue agave. It is rarely kept as a houseplant, but a 50-year-old blue agave in Boston grew a stalk requiring a hole in the greenhouse roof and flowered in the summer of 2006. Tequila is made only from a specific cultivar of "Agave tequilana" called 'Weber Azul'. This cultivar is larger and blue-gray in color compared to the smaller and green normal "A. tequilana". It is a rapid grower and prolific offsetter in keeping with its agricultural advantages. Tequila is produced by removing the heart
Agave potatorum are pale, silvery white, with the flesh coloured green fading lilac to pink at the tips. The flower spike can be 10–20 feet long when fully developed and bears pale green and yellow flowers. Agave potatorum Agave potatorum, the Verschaffelt agave, is a species of flowering plant in the family Asparagaceae. A smallish and attractive succulent perennial, it is native to partial desert areas of Mexico from Puebla south to Oaxaca. The Latin specific epithet "potatorum" refers to drinking and brewing. This plant has gained the Royal Horticultural Society’s Award of Garden Merit. "Agave potatorum" grows as a basal rosette