A Detailed Guide to Dianthus Cultivation: Mastering Planting and Care Techniques

Scientific name: Diranthus chinensis

English name: Chinese Pink, Rainbow-Pink

Aliases: Chinese dianthus, Luoyang dianthus, stone chrysanthemum, embroidered bamboo

Family name: Caryophyllaceae

Morphological characteristics: perennial herb, often cultivated as a biennial flower. Stems smooth and much branched. Leaves opposite, linear-lanceolate. Flowers solitary, pink, red, purplish red, white or multicolored, single or double, fragrant. Blooming period April to October, concentrated in April to May. Capsule oblong, seeds flattened and round, dark brown. There are more than 300 species in the same genus, and the commonly cultivated ones include:

1. Sweet William: also known as American dianthus, rainbow dianthus. Rich flower colors, flowers small and numerous, corymbose cyme, blooming period in spring and summer.

2. Japanese dianthus: also known as double-flowered dianthus, dwarf, large flowers, double-petaled.

3. Everblooming dianthus: flowers terminal, 2 to 3 per stem, fragrant.

4. Fringed pink: flowers terminal in loose panicles, light pink, fragrant. Native to China. Widely distributed. Except for the hotter regions of South China, it is distributed almost throughout the country. Sun-loving, cold-resistant, drought-tolerant, intolerant of waterlogging, prefers well-drained, fertile sandy loam.

Key points for propagation and cultivation: Can be propagated by sowing, cuttings, and division. Sow in September, bloom the following spring. Take cuttings from October to the following March. Division is mostly done after flowering using old plants. Planting is simple, management is extensive, and division should be done every year.

Brief cultivation history and flower culture: Dianthus has a long history of cultivation in China. In the Tang Dynasty, Sikong Shu wrote in "Dianthus Flowers at Yunyang Temple": "Since parting from the secluded mountain, we meet in this temple. High and low all put forth leaves, deep and light do not distinguish clumps. Wild butterflies find it hard to rival its white, courtyard pomegranates secretly yield their red. Who pities its fragrance lasting longest, from spring dew to autumn wind." The author depicts the form of dianthus with a leisurely mood, and uses butterflies and pomegranates to show the esteem for dianthus. In the Song Dynasty, Wang Anshi admired the beauty of dianthus and pitied that it was not appreciated by people, and wrote "Two Poems on Dianthus Flowers," one of which reads: "Spring returns to the secluded valley before it forms clumps, on the ground it spreads a shallow red. Carriages and horses do not come, who will see and admire it? Pitiful, yet it also knows how to pass the spring breeze." The Ming Dynasty "Flower History" records: "Dianthus flowers must be lifted by the roots and divided every year to flourish." This concisely summarizes the characteristic that dianthus should be divided and replanted frequently. The Qing Dynasty "Flower Mirror" also mentions: "Branches and leaves are like reeds, slender and green." Although dianthus flowers are not rare and precious flowers, they are colorful and endlessly varied, vigorous in nature, and cold-resistant, and can bloom from late spring to mid-autumn. In gardens, they can be used for flower beds, flower borders, flower platforms, or potted cultivation.