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Dianthus 'Telstar'
Dianthus 'Telstar'

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Zone
Zones A2, A3, 1-24, 30-45, H1
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Dianthus

Caryophyllaceae
Annuals, Perennials

Over 300 species and extremely large number of hybrids. Most kinds form attractive evergreen mats or tufts of grasslike green, gray-green, blue-green, or grayblue leaves. Single, semidouble, or double flowers in white and shades of pink, rose, red, yellow, and orange; many have rich, spicy fragrance. Main bloom period for most is spring into early summer; some kinds rebloom later in season or keep going into fall if faded flowers are removed. All kinds of dianthus thrive in light, fast-draining soil.

Dianthus barbatus

Vigorous biennial oftengrown as annual. From southern Europe. To 20 in. high and 1 ft. wide, with sturdy stems. Leavesare flat, light to dark green.Dense clusters of white, pink, rose, red, purplish, or bicolored flowers, about 1/2 in. across, set among leafy bracts; not very fragrant.Sow seeds in late springfor bloom the following year. Double-flowered and dwarf strains are obtainable from seed. Indian Carpet is only 6 in. high. The Amazon series grows 18–36 in. high.

Dianthus caryophyllus
Dianthus caryophyllus

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Dianthus caryophyllus

Dianthus caryophyllus is a highly bred Mediterranean species. Two distinct categories exist: florists’ and border types. Both have double flowers, bluish green leaves, and branching, leafy stems that often become woody at base.

Border carnations are bushier and more compact (12–14 in. high and wide) than florists’ type. Fragrant, 2–2 1/2-in.-wide flowers are borne in profusion. Effective as shrub border edgings, in borders of mixed flowers, and also in containers. Hybrid carnations grown from seed are usually treated as annuals but often live over. ‘Juliet’ makes compact, foot-tall clumps and bears 2 1/2-in. scarlet flowers over a long season; ‘Luminette’, 2 ft. tall, is similar. Pixie Delight strain is also similar but includes full range of carnation colors. Knight series has strong stems, blooms in 5 months from seed. Bambino strain is a little slower to bloom. There is also a strain called simply Hanging Mixed, with pink- or red-flowered plants that sprawl or hang from pot or window box. Newer varieties include bright red ‘Cinnamon Red Hots’, to 1 ft. tall; rose pink ‘Pinkie’, reaching 6 in. high; and foot-tall ‘Velvet ’n Lace’, with frilly dark red flowers edged in white.

Florists’ carnations are grown commercially in greenhouses, outdoors in gardens in mild-winter areas, including higher-elevation gardens in Hawaii. Greenhouse-grown plants reach 4 ft., have fragrant flowers 3 in. wide in many colors—white, shades of pink and red, orange, purple, yellow; some are variegated. For large flowers, leave only terminal bloom on each stem, pinching out all other buds down to fifth joint, below which new flowering stems will develop. Stake to prevent sprawling. Start with strong cuttings taken from the most vigorous plants of selected named varieties. Sturdy plants conceal supports, look quite tidy.

Dianthus chinensis Telstar, photo courtesy of Thomas J. Story
Dianthus chinensis Telstar, photo courtesy of Thomas J. Story

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Dianthus chinensis

Biennial or short-lived perennial; most varieties grown as annuals. Erect plant to 6–30 in. high and 6–10 in. wide; stems branch only at top. Stem leaves narrow, 1–3 in. long, 1/2 in. wide, hairy on margins. Basal leaves are usually gone by flowering time. Flowers about 1 in. across, rose-lilac with deeper-colored eye; lack fragrance.

Modern strains are compact domes (1 ft. high or less) covered with bright flowers in white, pink, red, and all variations and combinations of those colors. Petals are deeply fringed on some, smooth-edged on others. Some flowers have intricately marked eyes. ‘Fire Carpet’ is solid red; ‘Snowfire’, white with a red eye. Telstar is a bushy, extra-dwarf (6–8 in.) strain with dark green leaves. Sow directly in ground in spring, in full sun, for summer bloom. Pick off faded flowers with their bases to prolong bloom.

Dianthus deltoides

From Europe and Asia. To 8–12 in. high, forming a loose mat to 1 ft. wide. Blossoms about 3/4 in. wide, with sharp-toothed petals, are borne at ends of forked flowering stems with short leaves. Colors include white and light or dark rose to purple, spotted with lighter colors. Blooms in summer, in just a few weeks from seed. sometimes again in fall. Useful, showy ground or bank cover. Can tolerate half-day shade.

Dianthus gratianopolitanus

From Europe. Neat, ground-hugging, foot-wide mat of blue-gray foliage. Stems 6–10 in. high bear small, typically pink to rose, single blossoms (less than an inch across) that are very fragrant. Bloom season lasts from spring to fall if plants are deadheaded regularly. Effective as ground cover or edging or in rock garden.

Dianthus plumarius 'Ipswich Pinks', photo courtesy of Chris Burrows/Garden Picture Library/Photolibrary
Dianthus plumarius 'Ipswich Pinks', photo courtesy of Chris Burrows/Garden Picture Library/Photolibrary

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Dianthus plumarius

Charming, almost legendary European species, cultivated for hundreds of years and used in developing many hybrids. Typically has loosely matted gray-green foliage in clump to 2 ft. wide. Flowering stems 10–18 in. high; spicily fragrant, dark-centered flowers in rose, pink, or white, with more or less fringed petals. Highly prized are old laced pinks, with white flowers in which each petal is outlined in red or pink. Cottage pinks bloom from summer to fall if deadheaded. Indispensable edging for borders or for peony or rose beds. Perfect additionto small arrangements and old-fashioned bouquets. Choice selections include ‘Essex Witch’, with semidouble, rose-pink flowers on 5-in. stems; ‘Sweetness’, with a mix of darker-centered shades on 4-in. stems; and ‘Musgrave’s Pink’, a foot-high classic that’s at least 200 years old and bears intensely fragrant, single white blooms with a green eye.

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