Dramatic, large blooms of the deepest black with a velvet sheen, each has a small, bright yellow eye. One of the most sought after colours, Blackjack is one of the best. A hardy perennial best treated as an annual, flowers the same year from an early sowing. Grows well in sun or partial shade. Plant Height: 15cm

How to Sow Seeds

Spacing: 15-20cm
Growing notes: Sow in trays of seed compost. Just cover the seed and keep moist. Germination will take 10-21 days. Thin (prick out) when the seedlings have developed 2-4 leaves. Transplant the seedlings when sturdy into a well prepared garden soil. Space 15-20cm (6-8in) apart.

Growing Needs

Sunlight: Part shade
Water requirement: Moderate
Germination: 10-21 days

Plant Characteristics

Height: 15cm
Width: 15-20cm