|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.|
5 In stock
Originating from the Mediterranean.
An iconic Mediterranean-style specimen, bold and architectural, with vigorously growing tall stems. The long elliptical leaves are lustrous silver/gun metal grey and crowd the stems in a brush-like formation, being sparser at their base and extremely compact near the tips, below the flowers.
The brilliant lime green globes of many individual flowers appear over a long period in summer at the tips of every stem and make a fantastic coordinated display with the foliage. They are loved by all pollinators. The outstanding foliage and flowers take the form of a soft rounded and billowing shrub which serves as a stunning contrast to spiky plants, making this a must-have plant for Mediterranean hot gardens and coastal planting schemes.
It has a continual cycle of display; as its long-lasting flowering stems mature and become lax, they can be removed to reveal a new flush of healthy bright silver/green leaves emerging in a tightly compact mound. Care should be taken when working with the plant as the sap is an irritant to the skin and should not be allowed to splash into or around the eyes.
Easy to grow in all soil types, preferring sandy well-drained conditions in full sun. Height and spread after 2-5 years 1.5m x 1.5m.