Dianthus barbatus QIS® Robustus Double Mixture – A striking, richly flowering classic for the garden and vase

The Dianthus barbatus QIS® Robustus Double Mixture, also known as a special selection of Sweet William or Sweet William , is a real eye-catcher for any garden lover. This refined variety is known for its large, double flowers with a striking eye, arranged in compact clusters. Each cluster can contain up to 30 flowers, creating an impressive and long-lasting display. The colors range from deep red to soft pink and bright white, often two-toned and beautifully contrasting. These rich hues make the Robustus mix ideal for gardens that crave a vibrant interplay of colors.

Luxuriant growth and versatile application

The QIS® Robustus Double Mixture was developed for strength, uniformity, and exceptional ornamental value. Thanks to its sturdy stems and abundant flower production, this Dianthus is ideal for borders, flower beds, and large pots on balconies or patios. Its compact yet vigorous growth habit makes it a favorite with both amateur gardeners and professional growers.

This variety is also known as an excellent cut flower. Its sturdy stems, long vase life, and graceful double blooms make QIS® Robustus a popular choice for field bouquets, bridal arrangements, and floral arrangements with a rustic or romantic feel. The light, spicy fragrance typical of Dianthus varieties adds a special charm to bouquets.

Inflorescence and color variation

What makes this variety special is the quality of its flowers. The double petals create a full and lush texture, while the dark-colored eye adds depth to each flower. The two-tone varieties are especially popular for their playful and natural look.

Flower clusters of this size also attract numerous bees and butterflies, which not only makes the plant aesthetically pleasing but also makes a valuable contribution to a biodiverse garden.

Cultivation advice and sowing instructions

The Dianthus barbatus QIS® Robustus Double Mixture blooms after overwintering, making it ideal for a cultivation cycle that begins in late summer. Sowing in August or September gives the young plant the opportunity to establish strong roots before winter. During the cooler months, the plant rests, then vigorously emerges and blooms profusely in spring.

Sow preferably in light, well-drained soil and ensure the young plants are not overwatered. A sunny to partially shaded location produces the most abundant blooms. In borders, the plant looks stunning in clusters, but the compact flower clusters also hold their own perfectly as solo plants in pots.

Why choose Dianthus barbatus QIS® Robustus Double Mixture?

• Large, double flowers for maximum ornamental value

• Up to 30 flowers per bunch for an impressive abundance of blooms

• Stunning color mix of red, pink, white and two-tone varieties

• Ideal for borders, flowerbeds and pots

• Excellent cut flower with sturdy stems and long shelf life

• Attracts bees and butterflies, so good for biodiversity

• Blooms after overwintering, ideal for late summer sowing