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 polianthiflora Agave polianthiflora Agave polianthiflora is a relatively small member of the genus Agave, in the subfamily Agavoideae, endemic to northern Mexico. The succulent is native to the States of Sinaloa, Chihuahua and Sonora. "Agave polianthiflora" produces a small basal leaf rosette of about in diameter. Leaves are narrow and lanceolate, with multiple white filaments protruding from their edges. Flowers are red and tubular, in length and narrow, unusual in the genus. The flower spike is tall. "Agave polianthiflora" is cultivated as an ornamental plant. It is mostly easily propagated from seed, as it does not offset as much as other