|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.|
6 In stock
Originating from N. America
A compact, bushy perennial with dark green leaves and purple/violet, daisy-like flowers with orange centres. Asters come into their own late in summer when most blooms are fading. Not in the exotic garden though. ‘Samoa’ adds yet more colour, shape and texture to an exotic planting scheme alongside the flaming colours and lance-shaped leaves of crocosmias and cannas and gingers, and will carry on flowering until the frosts. Great cut flower too.
Grow in moist but well-drained soil in sun/part shade.
Mature height and spread after 1 – 2 years 60cm x 30cm