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Dianthus barbatus Summer Sundae Seeds - Sweet William

Dianthus barbatus Etournelle Formula Mix
Sweet William

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Sweet William 'Summer Sundae' is a wonderful selection that flowers in the first year from seed. The abundant blooms display a rich array of colours, from white to purple and various shades of pink. Very robust and cold hardy, they form very floriferous clumps of bluish-green foliage in late spring and early summer. Ideal for cutting, this selection is suitable for growing in pots and self-seeds abundantly. Easy to grow in cool, rich, well-drained soil, in full sun or partial shade.
Flower size
3 cm
Height at maturity
45 cm
Exposure
Sun
Annual / Perennial
Biennial
Germination time (days)
14 days
Sowing method
Direct sowing, Sowing under cover
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Sowing period January to February, June to July
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Flowering time June to August
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Description

Sweet William 'Summer Sundae' is a beautiful selection of flowers from seed in the first year. The abundant blooms display a rich array of colours, from white to purple and various shades of pink. Very robust and cold-hardy, they form very floriferous clumps of bluish-green foliage in late spring and early summer. Ideal for cutting, this selection is suitable for growing in pots and self-seeds abundantly. It is easy to grow in cool, rich, well-drained soil, in full sun or partial shade.

Dianthus barbatus is a biennial plant that belongs to the Caryophyllaceae family. It occurs naturally in temperate regions of Europe and Asia—this cold-hardy plant generally flowers in its second year after sowing. 'Summer Sundae' brings together several fast-growing varieties, producing flowers in the first year from seed. Plants quickly form a very dense basal clump of long leaves with pointed tips, light green to bluish green in colour. They vary in size from 45 to 60 cm tall in full bloom. Flowering takes place in late spring and early summer. The small flowers are gathered in flattened clusters, from 8 to 15 cm in diameter, carried at the end of thin yet sturdy stems. They vary significantly in colour, often featuring two tones and attractive markings. Some plants produce blooms that gradually change colour as they age. Sweet William flowers have a gorgeous spicy and lovely scent, with notes of cloves and cinnamon.

Sweet William is an easy plant to grow and is very low maintenance once established. Like bellflowers and columbines, it effortlessly fits into any garden. Grow along passageways such as garden paths or near an entrance to enjoy its sweetly scented blooms fully! Grow en masse in flower beds and borders to create beautiful drifts of colour. Dianthus barbatus is suitable for container gardens, in pots on the terrace or balcony. Make sure to provide the plants with perfect drainage and a little fertiliser.

Flowering

Flower colour multicoloured
Flowering time June to August
Inflorescence Cyme
Flower size 3 cm
Fragrance slightly scented, sweet, spicy
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Plant habit

Height at maturity 45 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Dianthus

Species

barbatus

Cultivar

Etournelle Formula Mix

Family

Caryophyllaceae

Other common names

Sweet William

Origin

Cultivar or hybrid

Product reference195310

Planting and care

Sow seeds indoors or in a greenhouse, from January to February as a late-flowering annual, or from June to July to see them flower in spring.

Sow on the surface of good quality, well-drained potting soil. Place the seed tray in a mini-greenhouse at a temperature of 15-20°C, or in a clear polythene bag until germination, which takes 7-21 days. Keep the potting soil moist, but not soggy, and don't exclude light.

When the seedlings are large enough to handle, transplant into 8 cm pots and allow the plants to develop in cooler conditions. Once all risk of frost has passed, gradually acclimatise them to outdoor conditions for 7-10 days before transplanting them outdoors. Keep a distance of 30 cm between plants, and plant them in any fertile, well-drained soil in full sun.

1
7,50 € Bag
17
14,50 € Each

Sowing period

Sowing period January to February, June to July
Sowing method Direct sowing, Sowing under cover
Germination time (days) 14 days

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral, Calcareous
Soil moisture Moist soil, Draining, rich

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