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Characteristics: Tuberous perennial 120 cm
Seeds per packet: 30
Cactus dahlias are easy to recognize by their dramatic spiky petals and vivid colours.
Plants produce large long-stemmed fully double and semi-double flowers with quilled and twisted petals. They are superb for cutting. Bloom is in late summer and autumn.
Adaptable to most well-drained garden soils in a sunny position. Preforms best in sandier soils, lighten heavy clay soils by adding sand.
Tropical: Winter & Spring
Temperate: Spring to Early Summer
Cold: Spring to Early Summer
Sow: Sow 12mm deep.
For best results sow direct in growing position.
Germination: 14-28 days
Plant space: 50cm
Flowering: 14-16 weeks
Remove spent flowers to encourage dense growth and new flowers.
Feed with a soluble fertiliser every two weeks for stronger plants.