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 macroacantha to 3 m (10 feet) in height. The plant prefers a dry, sunny and hot location for summer and from early autumn onwards a cooler, well-lit space. It likes regular watering in summer and only minimum watering in winter, and will fare well in a large pot with sparse, gravelly soil. In the UK this plant has gained the Royal Horticultural Society’s Award of Garden Merit. Agave macroacantha Agave macroacantha, the black-spined agave or large-thorned agave, is a species of succulent flowering plant in the Asparagaceae family naturally occurring in Oaxaca and also near the town of Tehuacan in the