The tequila cactus or the common name Blue Agave plant (Agave tequilana) needs high altitude and lots of sun to flourish. It is only hardy in USDA zones 9b and 10. The Blue Agave plants are a stunning plant that can reach a height and width of eight feet.When mature, this monocarpic plant sends out a fifteen-foot high, edible asparagus-like flower stalk and produces large numbers of pups at its base.
Water deeply, once a week for about four weeks. If you get substantial rain, don’t water.Once the plant is established, water one or two times a month during the growing season, always taking natural rainfall into account.Don’t water in the wintertime. When watering, water the plant thoroughly and evenly, but do not overwater and leave the plant standing in water. Wait until the soil is completely dry before watering again.
Fertilize Agaves Very Sparingly or Not At All.You can give your blue agave a half dose of diluted liquid fertilizer specially formulated feed for succulents and cactus if you wish. This really is not necessary, though.
These plants prefer a rich, sandy soil; however, almost any quality well-draining potting mix is acceptable.