Sweet William, specifically the “Dunetti” variety, is a striking biennial ornamental plant known for its deep crimson blooms. The slender, upright stems of this variety reach up to 50 cm in height, forming elegant clusters that are perfect for borders and as cut flowers in bouquets. The small yet abundant flowers are grouped into dense flower heads, measuring 10–12 cm in diameter, making them a standout feature in any garden.

Sowing

For the best results, sow Sweet William seeds in a seedbed. This allows young plants to develop robustly before being transplanted to their permanent location. Ensure seeds are kept well-watered and at a stable temperature to promote successful germination.

Sowing Depth

Sow the seeds at a depth of approximately 0.5 cm. This depth provides optimal conditions for germination and encourages rapid seedling development.

When to Sow Directly into the Ground?

The ideal time to sow Sweet William seeds directly into the ground is in May and June. Sowing during this period allows the plant to establish well before the onset of winter.

When to Sow Under Cover?

Sowing under cover is best done in May and June. These conditions accelerate growth and allow for the earlier establishment of healthy seedlings.

Planting Time

Transplant young plants into the ground from July to September. This timing ensures they root well before winter, promoting strong growth and flowering in the following season.

Seedlings

Once seedlings have developed, ensure they are nurtured in a stable environment. Regular watering and protection from extreme weather will help them thrive.

Spacing

For optimal growth and abundant flowering, space the plants 20x35 cm apart. This spacing allows for sufficient air circulation and nutrient access.

Companion Planting

Sweet William pairs beautifully with other ornamental plants such as lavender, sage, and coreopsis, creating harmonious colour combinations and enhancing garden aesthetics.

Growing Position

This plant thrives in sunny locations but can tolerate partial shade. It prefers fertile, moderately moist soil with good drainage.

Cultivation

Regular watering is essential, especially during dry spells. Removing spent blooms will extend the flowering period and encourage new buds.

Height

The plant reaches a height of 50 cm, forming compact clumps with an elegant appearance.

Flowering Period

Sweet William blooms in its second year, with its impressive flower heads adorning the garden from June to August.

Uses

This versatile plant is ideal for borders, edging, and container gardening. Its long-lasting flowers are also suitable for cutting, maintaining freshness in bouquets while providing a pleasant fragrance.

Disease Resistance

This variety is resistant to diseases and pests, making it easy to grow and requiring minimal protection.

Good to Know

Sweet William is a member of the Dianthus family, specifically Dianthus barbatus. Known for its vibrant colours and pleasant scent, it is a favourite among gardeners looking to add a splash of colour to their outdoor spaces.

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The package contains 0.5 g of seeds. It includes information on cultivation guidelines and the best sowing date for optimal results.