Dianthus barbatus Sweet™ Purple – Deep purple elegance for professional cut flower cultivation

Dianthus barbatus Sweet™ Purple is among the most highly regarded cultivars in the internationally recognized Sweet™ series—the finest commercial line of D. barbatus available today. This series was specifically developed for professional growers who require uniform growth, strong stems, and exceptional vase life. Sweet™ Purple is distinguished by its rich, deep purple color that immediately stands out in bouquets and arrangements. The intensity of this shade makes it a favorite in both classic and contemporary floral designs.

Blooms without vernalization – ideal for year-round production

Like all varieties in the Sweet™ series, Sweet™ Purple doesn't require vernalization. Thanks to its lack of chilling requirements:

• If the plant blooms in the first year,

• Can you plan year-round growing cycles,

• Can production be perfectly matched to demand peaks?

• Cultivation becomes even more predictable and efficient.

This is a huge added value for commercial cut flower cultivation. Growers can flexibly switch between seasons, respond effectively to market moments, and continuously produce high-quality stems without having to wait for winter conditions.

A powerful colour – striking and refined at the same time

What makes Sweet™ Purple so appealing is its deep purple, almost velvety flower color, which exudes strength and luxury. This cultivar is particularly suitable for:

• stylish and modern bouquets,

• autumn and winter arrangements,

• depth accents in mixed bouquets,

• luxury retail presentations,

• export where colour intensity is distinctive.

The flowers are large, lightly scented, and richly filled, adding excellent volume to bouquets. Purple creates a beautiful contrast with pastel varieties, but works just as well with monochromatic purple themes.

Uniform growth and strong stems

The Sweet™ series is designed for optimal crop performance. Sweet™ Purple also delivers:

• Very uniform height,

• Sturdy, straight stems,

• Large and well-formed flower clusters,

• Many saleable lengths,

• Excellent transport and store shelf life.

The strong stems and consistent bunches make this variety particularly suitable for professional cut flower cultivation, both locally and for the export market. Thanks to its uniformity, harvesting is efficient and predictable.

Recommended planting density and growing conditions

For maximum production, the standard planting density of the Sweet™ series is maintained:

Plant density: 42 to 64 plants per m²
(4 to 6 plants per square foot)

Sweet™ Purple grows well in:

• Greenhouse conditions – ideal for year-round, controlled production,

• Foil tunnels – very suitable for spring and autumn production,

• Open ground – good results in mild climates and seasonal cultivation.

For extra strong growth and longer stems it is recommended to:

• Plant out young plants in the greenhouse in autumn.

This early planting promotes a strong root system and results in a higher production of long, sturdy, uniform stems the following spring.

Why choose Dianthus barbatus Sweet™ Purple?

• Part of the best commercial D. barbatus series

• No vernalization → flowering in the first year

• Suitable for year-round cultivation planning

• Deep purple, luxurious flower color

• Large, fragrant flower clusters

• Uniform and strong stems, ideal for transport

• Excellent shelf life in store and vase

• High production of marketable stems per m²

• Suitable for greenhouse, foil tunnel and open ground

• Perfect for cut flower production, retail and export