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Dahlia 'Decorative Giants Mix'

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A tall variety of dahlia that produce double and semi-double flowers in a variety of colours and bi-colours. These perennials can be sensitive to cold weather, so if they are not grown in a warm climate it is best to dig the tubers up for storage or to grow them as annuals. 

  • Good for cut flowers 

PLEASE NOTE: When growing Dahlias from seed do not disturb plant for two years before harvesting tubers. If you live in a cold climate start them off in pots so tubers can be protected in winter.


Raise seedling or sow direct. Well drained soil media

Sowing Depth 5mm
When to sow in Australia

Tropical: Spring and Autumn 

Sun -tropical: Spring and Autumn 

Temperate: Spring and early summer

Cool climate: Spring and early summer

Germination 7-12 days at 21-23°C
Plant Spacing 50cm
Width 50cm
Height 150cm
Position Full sun. Full sun to part shade