Agave victoriae-reginae

Agave victoriae-reginae (Queen Victoria agave, royal agave) is found in the Chihuahuan Desert in the Mexican States of Coahuila, Durango and Nuevo León, with about a half-dozen subspecies  of small species of succulent flowering perennial plant. The situation is complicated by hybrids with a number of other agave species.
It is cold-hardy as agaves go, and thus finds favor as a small accent in many northerly gardens. However it is recommended in the UK that this plant be kept in heated conditions under glass during winter. It has gained the Royal Horticultural Society's Award of Garden Merit.

This agave is highly variable in form, but in general the rosettes are small and compact, growing to 0.5m, composed of short, rigid, thick leaves that are green with a pattern of distinctive white markings. The markings are generally along leaf keels or margins, giving a sort of polyhedral appearance. Marginal teeth are usually lacking, while the terminus of the leaf may include 1 to 3 spines, each 1.5–3 cm in length. Cream coloured flowers are borne in erect racemes up to 4m in length.