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Dianthus Sunflor Cosmos

Dianthus Sunflor® Cosmos
Pink, Pot Carnation

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More information

A very attractive, perennial variety of carnation with continuous flowering from April to September. The double, fragrant flowers are composed of numerous finely cut, bright pure white petals and cover this charming and beautiful plant from spring to autumn. Round and compact, 15 cm (6in) high, this plant is perfect for adorning flower pots, planters, borders and sunny rockeries. This high-quality selection is an ideal choice for a neat and attractive look in your garden.
Flower size
4 cm
Height at maturity
20 cm
Spread at maturity
20 cm
Exposure
Sun
Hardiness
Hardy down to -9°C
Soil moisture
Moist soil
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Best planting time March to April
Recommended planting time March to June
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Description

Dianthus Sunflor Cosmos is a remarkable, dwarf and compact variety of perennial double carnation forming a small cushion of bluish-grey foliage. Also ideal for creating high-quality floral compositions. This selection is part of the Sunflor range and stands out for its early, abundant flowering of delicately scented flowers that brighten the garden from April to September. This evergreen perennial is easy to grow in the ground or in pots. It can tolerate temperatures as low as -10°C (14°F). Cosmos produces bright and vigorous pure white flowers throughout the season. This plant develops into a robust cushion, capable of withstanding dry or rocky soils, and thrives in full sun.

Dianthus Sunflor Cosmos belongs to the Caryophyllaceae family, which includes soapwort, pearlwort, and baby's breath. It is one of many varieties resulting from cross-breeding between Dianthus plumarius and Dianthus caryophyllus. Dianthus plumarius is a European perennial plant, the main ancestor of various old and modern varieties of carnations. Dianthus caryophyllus, of Mediterranean origin, has passed on its wonderful clove scent and tolerance to chalky and dry soils. The Sunflor 'Cosmos' carnation grows rapidly, reaching a maximum height and spread of 15 to 20 cm (6 to 8in). It forms a dense clump, producing wide, round, double flowers 3 to 4 cm (1 to 2in) in diameter carried by short, branched stems, from April to October. Its linear, evergreen, leathery, beautiful bluish-grey leaves, are pointed and smooth.

The Sunflor Dianthus collection is versatile and unique. It has many different colours, flower shapes, and plant types. All varieties in this selection flower continuously from spring to autumn, tolerate temperatures as low as -10°C (14°F), and have a compact growth habit. The plants can be used outdoors as well as indoors. The fragrant and colourful flowers, have excellent durability in small bouquets or buttonholes.

Dianthus Sunflor is ideal for terraces, balconies, borders, slopes, and rockeries. It has low water requirements but needs plenty of sunlight. Its charming, scented flowers are wonderful anywhere. The different Sunflor varieties, such as Sinclair, Megan, Evert, Cosmos, or Beetle will illuminate your garden with their vibrant colours. They blend beautifully with varieties of Sweet William (Dianthus plumarius), Sun Roses, Silene schafta Splendens, Arabis, Wall Bellflower, Moss Phlox (Phlox subulata), Aubrietas, Erigeron karvinskianus, Rock Soapwort (Saponaria ocymoides), or bloody cranesbills (Geranium sanguineum). To recreate a nostalgic atmosphere, plant these adorable carnations alongside peonies and old roses. A harmonious association can be created by combining Sunflor® Dianthus with Munstead Lavender, Pincushion Pink Scabious, Dwarf Gaillardia, and Sunray Tickseed, offering an elegant and harmonious contrast. You can also combine them with annual plants such as petunias, lobelias, and garden verbenas (Verbena Endurascape), offering a dazzling array of vibrant shades. Cosmos and osteospermums are also good choices to extend the flowering period.

Note: Attention, our young plug plants are professional products reserved for experienced gardeners: upon receipt, plant them as soon as possible, in pots, containers, or directly in flower beds.

Dianthus Sunflor Cosmos in pictures

Dianthus Sunflor Cosmos (Flowering) Flowering

Flowering

Flower colour white
Flowering time April to September
Inflorescence Double
Flower size 4 cm
Fragrance Fragrant, spicy, peppery, musky
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Evergreen
Foliage colour grey or silver

Plant habit

Height at maturity 20 cm
Spread at maturity 20 cm
Growth rate fast

Botanical data

Genus

Dianthus

Cultivar

Sunflor® Cosmos

Family

Caryophyllaceae

Other common names

Pink, Pot Carnation

Origin

Cultivar or hybrid

Planting and care

Plant Dianthus Sunflor Cosmos in the spring, in ordinary, permeable and humus-bearing, rocky, clayey or limestone, dry to moist, well-drained soil. A gravel-rich soil gives good results. When planted in the ground, this plant is hardy to -10 °C (14°F). It prefers a very sunny exposure.

Prune slightly after flowering to promote foliage renewal and a dense habit, especially in rich soil. In poor soil, apply a balanced fertiliser in March.

Planting period

Best planting time March to April
Recommended planting time March to June

Intended location

Suitable for Meadow, Rockery
Type of use Edge of border, Container
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 7 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, Ordinary well-drained soil.

Care

Pruning instructions Prune the faded stems to encourage the plant to produce new flowers. Cut back the stems at the end of flowering to maintain a cushion shape and allow the crown to strengthen.
Pruning Pruning recommended once a year
Pruning time June to October
Disease resistance Good
Overwinter Can be left in the ground

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