Carnation flower

The Carnation, botanically known as Dianthus caryophyllus and classically called the Clove Pink or Gillyflower, is an extraordinarily famous herbaceous perennial belonging to the Caryophyllaceae (pink or carnation) family. Native to the rocky slopes and coastal scrub of the Mediterranean region—particularly Greece, Italy, and Spain—this historic species has been cultivated for over 2,000 years. It stands as one of the world's most significant and commercially grown cut flowers, celebrated globally for its deeply ruffled blooms, long-lasting vase life, and rich cultural associations.

Carnations are characterized by their narrow, linear, glaucous blue-green leaves that grow in opposite pairs along rigid, prominently jointed stems. The flowers measure 1.5 to 2.5 inches across, featuring dense, layered whorls of heavily ruffled, fringed petals that form a dome-shaped blossom. While wild varieties are single-flowered with 5 petals, commercial selections are almost exclusively double-flowered with 20 to 40 petals. They come in an incredible spectrum of colors, including deep red, rose-pink, white, yellow, orange, and purple, emitting a rich, spicy fragrance of cloves.

The reproductive blueprint of this classic flower is represented by the formula EBr ⊕ ⚥ K(5) C5 A(5+5) G(2-5). This denotes that the flower is ebracteate, radially symmetrical (actinomorphic), and bisexual. It features a calyx of 5 fused sepals forming a rigid, cylindrical calyx tube, and a corolla of 5 free, clawed petals with fringed edges. The androecium contains 10 stamens in two whorls of five, surrounding a syncarpous gynoecium of 2 to 5 fused carpels forming a single superior ovary with free central placentation.

Thriving in cool-to-moderate climates, Carnations grow beautifully in USDA hardiness zones 3 through 9. They require full sun, needing 6 to 8 hours of direct daily sunlight to produce strong stems and a heavy flush of blooms. They prefer fertile, loamy, moist but exceptionally well-draining soils with a slightly alkaline pH (6.5 to 7.5). They are highly sensitive to soggy soils and overhead watering, which can invite fungal leaf spots, and they benefit from staking to support their tall, heavy flowering stems.

Steeped in ancient Greek history, the genus name Dianthus is derived from 'dios' (divine) and 'anthos' (flower), meaning the 'Divine Flower' or 'Flower of the Gods.' In 1907, Anna Jarvis chose the white carnation as the official symbol of Mother's Day, representing pure love, respect, and maternal devotion. In regional languages, it is known as कार्नेशन in Hindi and Garofano in Italian. Culturally, pink carnations symbolize maternal love, deep red represents passion and romantic affection, while white stands for pure, untamed fidelity.

For families with pets, Carnations present a mild health hazard. Dianthus caryophyllus is classified as TOXIC to dogs and cats by major veterinary groups. The plant contains triterpenoid saponins throughout its leaves and stems. If chewed or ingested, these compounds cause mild gastrointestinal irritation, vomiting, and diarrhea. Additionally, contact with the sap can trigger mild contact dermatitis (skin irritation and redness) on sensitive animal skin. To maintain a safe environment, please cross-reference our Pet Guard safety listings.

Carnations are occasionally confused with their close relative, Sweet William (Dianthus barbatus). They are easily distinguished by their single, massive double flower heads on each main stem (standard types), whereas Sweet William produces flat-topped clusters of many tiny, bearded blossoms. They serve as exceptional additions to perennial borders; we suggest planting them alongside Sweet William or Canterbury Bells. Discover more Caryophyllaceae choices in our Flower Identifier.