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 mitis Agave mitis Agave mitis is a plant species native to the Mexican states of Hidalgo, Tamaulipas and San Luis Potosí, referred to as "Agave celsii" in many publications. "Agave mitis" forms rosettes of blue-green to yellow-green, fleshy leaves up to 60 cm (2 feet) long. The leaves have soft brown spines not nearly as imposing as those of other agaves. The flowering stalk is up to 2.5 m (8 feet)tall, with the flowers closely appressed against the stem forming a narrow column much more compact than most other species of the genus. Flowers are green, each up to 60 mm