Dianthus barbatus Tall Single Nigricans – Deep dark flowers for a luxurious look

The Dianthus barbatus Tall Single Nigricans is a striking and unique variety within the Sweet William family, specially developed for professional cut flower production. This cultivar is known for its deep, dark, almost black flowers, which add a dramatic and luxurious touch to bouquets and arrangements. The Nigricans variety is particularly well-suited for modern, high-end floral creations where color contrast and elegance are key.

With its strong stems, uniform growth, and excellent shelf life, Tall Single Nigricans is ideal for commercial production, both in greenhouses and outdoors. It produces a distinctive product that appeals to both retail and export markets.

Flowering and sowing instructions

Tall Single Nigricans has a relatively mid-to-late flowering period, making it well-suited for staggered production schedules. For optimal results, we recommend:

• Sow in early autumn so the plants can flower in early spring,

• If desired, combine with other D. barbatus mixtures such as Extra Early or Super Duplex to extend the flowering period,

• The rich dark colour makes the mixture extremely suitable for contrasting bouquets in combination with bright colours such as white, pink or red.

This sowing and cultivation strategy ensures a continuous flow of marketable stems with a unique visual impact.

Characteristics of Tall Single Nigricans

The main characteristics of this variety are:

• Deep dark, almost black single flowers,

• Strong, straight stems, suitable for professional cut flower cultivation,

• Uniform plant and flower height for reliable harvest,

• Excellent vase and shop shelf life,

• Ideal as an eye-catcher or accent in bouquets and arrangements,

• Suitable for greenhouse and open field cultivation.

The dark flower color gives bouquets a dramatic effect and makes Nigricans popular with florists who want to emphasize luxury and exclusivity.

Cultivation advice

For optimal yield and quality it is recommended:

• Plant density of 42 to 64 plants per m² (4 to 6 plants per square foot),

• Greenhouse or tunnel cultivation, for controlled growth and year-round production,

• Open-field cultivation, provided the local climate is suitable,

• Consider combining with Extra Early or Super Duplex blends to extend the flowering period and achieve a layered harvest.

This strategy allows Tall Single Nigricans to deliver a stable and high-quality harvest with long, sturdy stems and uniform flowers.

Why choose Dianthus barbatus Tall Single Nigricans?

• Deep dark, almost black flowers for a luxurious and exclusive look

• Strong, straight stems for commercial cut flower cultivation

• Uniform height and flowering, suitable for standardized harvesting

• Excellent shelf life in store and vase

• Suitable for greenhouse, foil tunnel and open ground

• Possibility to extend flowering by combining with other D. barbatus mixtures

• Perfect for retail, export and professional florists