Cactus and semi-cactus dahlias bear fully double flowers with pointed looking petals that curve in tightly for about half of their length.
Dahlia 'Black Narcissus' has dark maroon flowers with a pinkish centre. It's perfect for growing in a mixed herbaceous border, and makes an excellent cut flower.
For best results, grow Dahlia 'Black Narcissus' in full sun in fertile, well-drained soil. Deadhead regularly and feed with a potash-rich fertiliser to prolong flowering. Lift tubers after the first frosts and store them in a cool, dry situation until March. Then pot them up and keep them in a temperate greenhouse before planting out in late May.
Cultivar: Black Narcissus
Plant type: Tender perennial
Flower colour: Purple
Foliage colour: Mid-green
Sun exposure: Full sun
Soil: Well-drained/light, Clay/heavy, Acidic, Chalky/alkaline, Sandy
Skill level: Experienced
Time to take cuttings: April to May
Flowering period: July to September
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