Agave americana is known as century plant but it typically only lives between 10 and 30 years. It can grow 1-2 m high and 2-4 m across. Older individuals may sometimes develop a short woody stem at the base of the plant and commonly produces numerous suckers(adventitious roots) which form a large clump or colony. When fully mature, A. americana develops a massive flower cluster on a robust flowering stem 6-12 m tall.
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Agaves thrive on neglect. They grow quickly and remain attractive all year. Here are some tips for getting your agave plants established.
Propagation: Since it can take years for an agave plant to produce seed, most are propagated by offsets or tissue culture.
Soil: Agave will tolerate any well-draining soil, but their preference is rocky or sandy soil. They are not particular about soil pH.
Water: Although mature plants are very drought tolerant, when you are first establishing a plant outdoors, water it every 4 – 5 days for the first month. Then once a week, gradually spacing watering to every other week, depending on the weather.
Feeding: Don’t feed agave plants. Agaves seem to take care of themselves. Feeding encourages flowering, which you don’t want to happen too soon, since agave plants die off after flowering.