Agave americana f. aureo-marginata 'Monstrosa', Agave americana 'Marginata Aurea Monstrosa', Agave 'Hummel's Dwarf Cornelius', Agave 'Monstrous Dwarf', Agave 'Quasimoto'
Agave 'Cornelius' is a spectacular succulent that forms rosettes of wavy, strongly variegated leaves armed with dark brown teeth along the margins and a sharp terminal spine. The rosettes slowly grow up to 18 inches (45 cm) tall and up to 34 inches (75 cm) in diameter, rarely producing offsets. Leaves are green and adorned with broad yellow variegation along the margins.
Agave 'Cornelius' was discovered by the late Dr. Cornelius of California. There is some question whether it is even a cultivar of Agave americana. However, this has not yet been verified since it has not yet bloomed.
USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).
How to Grow and Care
Agave is not a difficult plant to grow. They're slow-growing and dramatic and will even thrive on a bit of neglect. If you're the type of person who likes to fuss with houseplants and water a lot, Agave is probably not the plant for you. If, however, you're the type of person who likes to set it and forget it, and you have a sunny window, Agave might be the way to go. Be aware that some large varieties will eventually outgrow your room (unless you have a large greenhouse), and Agave can be aggressive. They have irritating sap and sometimes very sharp thorns that can cause injuries to small children and even pets.
In general, Agaves do not need to be repotted every year. Most species commonly found in cultivation grow slowly and take a long to outgrow their pot. It's also best to handle your Agave as little as possible since they do not like to be disturbed. When repot, refresh the spent soil with a new potting mix and make sure the plant is firmly anchored in its pot.
See more at How to Grow and Care for Agave.
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