|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.|
Originating from Mexico
Wow factor rarely comes bigger than this. A hardy and fast-growing species that forms a large head of silver-blue foliage, with the leaves held rigidly outwards from a central rosette, resembling a firework exploding. There are few better centerpieces to desert, contemporary, and Mediterranean planting schemes than the ‘Blue Nolina’. Huge, potentially 6m tall flower spikes are occasionally produced bearing many hundreds of individual blooms. Easy to grow in full sun and poorly drained soil, in pots, or in the ground.
Height and spread after 5 – 6 years 1.5m x 1.5m
Semi-mature height and spread after 10 – 12 years 2.5m x 1.5m
Potential semi-mature height and spread after 20 years 3m x 2.5mAfter flowering the plant may become a multi-headed tree-like specimen.
Inflorescences can be up to 6m taller than the leaves.