|1||15C+||Indoor||Grow as a houseplant or under heated glass.|
|2||10 to 15C+||Indoor / Outdoor||Grow indoors, or outdoors in summer in a sheltered spot|
|3||5 to 10C||Tender||Grow outdoors in summer, and in a heated glasshouse in winter.|
|4||1 to 5C||Tender||Grow outdoors or under glass without risk of frost.|
|5||-5 to 1C||Half-Hardy||Hardy in coastal/mild/sheltered areas. Will not tolerate hard/sudden frost. May require winter protection in situ. such as fleece or straw mulch.|
|6||-10 to -5C||Hardy||May suffer at altitude, central/northerly locations, harsh winters, cold gardens and when grown in pots.|
|7||-15 to -10C+||Hardy||Will survive most severe winters but may be at risk in central/northerly locations and in pots. Top growth may be destroyed but will usually re-grow.|
|8||-20 to -15C||Hardy||Will survive severe winter, but may need protection when grown in pots.|
|9||-20C & Colder||Very Hardy / Hardy||in the severest European climates.|
Out of stock
Originating from Mexico
An architectural, evergreen, succulent perennial with rosettes of green leaves with a broad yellow stripe down the margins, up to 2m in length. Along these margins run extremely sharp recurved teeth, like fishhooks, and a very sharp, pointed tip. Often these leaves curve dramatically.
When mature, and if weather conditions are suitable, it sends up an enormous, branched, flowering stem from the centre of the rosette, with numerous tubular yellow flowers. Flowering is quite rare but not unheard of in the UK. This is a monocarpic plant and individual rosettes die after flowering but usually produce many suckers around the base, so continuing its lineage.
Grow in pure grit and full sun, give winter protection from rain and snow.
Flowering spike may reach 8m.
Approximate height and spread after 10 years 2m x 3m