I.工場の概要

As one of China’s traditional famous flowers, Chinese Pink is cherished for its compact low-growing habit (20-40 cm tall), slender tough stems, and elegant linear leaves. Its distinctive funnel-shaped or bell-shaped flowers feature delicately serrated petals in a rich palette of red, pink, white, purple, and bicolor shades—some varieties even emit a faint fragrance. Exceptionally adaptable, it tolerates cold, drought, and poor soil, making it a versatile choice for balconies, gardens, and public landscapes. With abundant blooms and a long flowering season, it balances ornamental and practical value perfectly, remaining a popular gardening favorite.

II.形態学的特徴

Chinese Pink forms dense clumps with a compact, graceful shape and high ornamental value:

• ステム: Erect or ascending, 20-40 cm tall, cylindrical with distinct nodes, smooth or slightly pubescent, green or pale purple. Strong branching ability forms a compact plant shape.
• 葉: Opposite, linear-lanceolate or strap-shaped, 3-5 cm long and 0.3-0.5 cm wide, with smooth margins and glossy emerald green surfaces. Parallel veins, clasping the stem at the base, with strong drought resistance.
• 花: Solitary or clustered at stem apices, 2-5 cm in diameter. Calyx is tubular (1.5-2.5 cm long) with 5 lobes; 5 fan-shaped or elliptical petals with irregular serrated or fringed edges. Flower colors include bright red, pink, white, purple, pale purple, and red-white bicolor—some varieties have spotted or striped petals. 10 stamens and 1 pistil with 2-lobed stigma.
• フルーツ: Capsule, oblong or cylindrical, dehiscing at the top when mature, containing numerous small seeds. Seeds are black or dark brown, flattened orbicular with fine textures, 1000-seed weight 0.5-0.8 grams, germination rate lasts 3-4 years.

III.成長習慣

Chinese Pink is a typical sun-loving, cold-tolerant, drought-tolerant, and poor-soil-tolerant plant, preferring cool dry climates and avoiding high temperature, high humidity, and waterlogging:

• 温度: Optimal growth temperature 15-25℃; seed germination requires 15-20℃ (best at 18-20℃). Extremely cold-hardy—most varieties tolerate -10℃, some hardy types withstand -15℃. Poor heat tolerance: growth slows above 30℃ in summer; provide shade to prevent leaf yellowing and reduced flowering.
• ライト: Absolutely sun-loving, requiring 6-8 hours of direct sunlight daily. Sufficient light promotes more branches, abundant blooms, and vibrant colors; insufficient light causes leggy growth, weak stems, sparse flowering, and dull colors—even no flowering.
• 土壌: Undemanding, preferring loose, well-drained, humus-rich slightly acidic to neutral soil (pH 6.0-7.5), ideally sandy loam or humus loam. Tolerates poor soil and grows in ordinary garden soil but intolerant of heavy, waterlogged soil. Compacted or waterlogged soil easily leads to root rot and death.
• 水: Drought-tolerant, intolerant of waterlogging. Follow the principle of “water only when dry, water thoroughly when watering”—slightly dry soil is optimal. Keep soil slightly moist during seedling stage to promote root development; strictly control water for mature plants.适当 increase watering frequency in hot summer but avoid waterlogging; reduce water in winter to keep soil slightly dry for frost protection.
• 特別な特徴: Fast growth rate—2-3 months from sowing to flowering; strong tillering ability forms clumping plants; long flowering period with frequent blooms—pruning promotes secondary flowering; resistant to harmful gases (sulfur dioxide, chlorine), suitable for urban greening.

IV.コア・バリュー

1. Ornamental Value: Vibrant Colors & Long Flowering Season

With a compact low-growing habit, rich vibrant colors, and unique serrated petals, Chinese Pink is highly ornamental. It produces abundant blooms over a long period (spring to autumn), making it a key flowering plant in landscapes. Whether as balcony potted plants, garden clumps, flower bed plantings, or border edgings, it creates a colorful, lively scene with exceptional ornamental value.

2. Practical & Economic Value: Versatile Uses

Chinese Pink is an excellent cut flower with slender stems and long vase life (7-10 days), suitable for bouquets, flower baskets, and floral arrangements. Some fragrant varieties are used for essential oil extraction in aromatherapy and perfumes. Its compact size makes it an ideal potted flower with high market demand and economic value. Additionally, the entire plant is medicinal, with effects of clearing heat, promoting diuresis, and activating blood circulation.

3. Ecological Value: Air Purification & Greening

Chinese Pink has strong resistance and adsorption capacity for harmful gases (sulfur dioxide, chlorine), improving air quality when planted in gardens, parks, or urban green belts. Its well-developed root system and strong tillering ability provide good coverage, making it suitable as a groundcover to prevent soil erosion. With abundant nectar-rich blooms, it serves as an important nectar source for bees, butterflies, and other beneficial insects, promoting ecological balance.

V.科学的栽培ガイド

1. Planting Time Selection: Spring & Autumn Optimal

Chinese Pink prefers cool dry environments; plant in spring or autumn for optimal growth and flowering, avoiding extreme heat and cold:

• 春の植え付け: Southern regions (Yangtze River Basin and south) can sow or transplant in February-March; northern regions (Yellow River Basin and north) in March-April. Stable temperature rise and sufficient light facilitate seedling acclimation and vigorous growth—blooms in summer.
• 秋の植え付け: Southern regions can sow or transplant in September-October; northern regions complete by August-September to allow plants to form robust growth before winter, improving cold resistance—abundant blooms in next spring.
• 苗の栽培: For seed propagation, start seedlings indoors in February-March (temperature 18-20℃) or direct sow outdoors in April-May. Seedlings emerge in 10-15 days; transplant when 4-6 true leaves form.

2. Soil Preparation: Loose & Well-Drained

Chinese Pink adapts to various soils, but well-prepared soil promotes vigorous growth and abundant flowering:

1. 土壌比率: Recommended formula: 4 parts garden soil + 3 parts leaf mold + 2 parts river sand + 1 part perlite. Mix well and expose to sun for 3-5 days to disinfect, killing insect eggs and pathogens.
2. 土壌改良: For heavy clay soil, increase river sand/perlite ratio to improve drainage; for poor soil, mix in decomposed organic fertilizer or compound fertilizer to enhance fertility.
3. 基肥の施用:根焼けを防ぐため、植え付け前に分解有機肥料(1アール当たり10～15kg)または化成肥料を土に混ぜ、十分に混ぜる。鉢植えの場合は、水はけをよくするために、底にセラサイトや砂利を敷きます。.

3. Planting Methods: Sowing, Cuttings, Division

Chinese Pink can be propagated by sowing, cuttings, or division. Sowing is simple for home cultivation; cuttings and division preserve parent plant traits:

1. 播種: Soak seeds in 30℃ warm water for 4-6 hours, dry and evenly spread on seedling medium, cover with 0.3-0.5 cm thin soil. Keep medium moist at 18-20℃; seedlings emerge in 10-15 days. Thin seedlings at 2-3 true leaves, transplant at 4-6 true leaves (1-2 plants per pot/hole, spacing 15-20 cm).
2. カッティング伝播: Conduct in April-May (spring) or August-September (autumn). Select healthy current-year shoots, cut into 8-10 cm cuttings, remove lower leaves, retain 2-3 top leaflets. Soak lower part in rooting solution for 5-10 minutes, insert into river sand/perlite medium (1/3-1/2 depth). Keep moist at 20-25℃; roots form in 15-20 days.
3. ディビジョンの伝播: Optimal in March-April (spring) or September-October (autumn). Dig up healthy mother plants, gently separate clumps, each retaining 3-5 buds and complete roots. Trim rotten roots and overlong branches, transplant and water thoroughly—blooms in the same year.
4. 鉢植えノート: Choose 20-25 cm diameter pots with drainage holes, plant 1-2 plants per pot to avoid poor ventilation.

4. Seedling Stage Management: Acclimation & Growth Promotion

The seedling stage (1-2 months after transplanting) is crucial for adapting to the environment and forming a robust plant shape:

• 馴化管理:移植した苗は、直射日光を避け、風通しのよい涼しい場所に 3-5 日置き、順化させる。徐々に照度を上げ、葉の張りが戻ってきたら、日当たりのよい場所で管理する。.
• 水のコントロール: Keep soil slightly moist during seedling stage, strictly prohibit waterlogging. Water in the morning with a spray bottle or along pot edges, avoiding wetting leaves and flowers.
• 肥料管理:苗の段階では肥料は与えない。馴化後(移植後 1 か月)は、葉の生育を促進するために NPK 濃度を 1000 倍に薄めた化成肥料を与える。.
• Weeding & Loosening Soil:根の呼吸を促進し、圧縮を防ぐために、月に1-2回土をほぐす。.

5. Growth Period Management: Water, Fertilizer & Pruning

From acclimation to budding (2-3 months), Chinese Pink grows rapidly—strengthen management to promote branching and flowering:

6. Flowering & Post-Flowering Management

• ライトマネジメント:開花期には毎日 6-8 時間の直射日光を当てましょう。十分な日照があれば、花色は鮮やかになり、花も豊富に咲き ます。.
• 水のコントロール:乾燥による花のしおれや、湛水による根腐れを防ぐため、開花中は土壌をやや湿らせておく。水やりは朝か夕方に行いましょう。.
• 補助受粉: Chinese Pink is cross-pollinating; outdoor plants rely on bees and other insects for natural pollination. For closed home environments, gently shake flower clusters to assist pollination and improve seed setting rate.
• Post-Flowering Recovery: Promptly cut off spent flowers and 1-2 pairs of lower leaves after blooming to reduce nutrient consumption; apply dilute phosphorus-potassium fertilizer to promote plant recovery and reserve nutrients for secondary flowering; remove diseased and withered leaves to maintain ventilation and light penetration.

7. Pest & Disease Control

Chinese Pink is adaptable with few pests and diseases. Common issues and control methods:

(1) 病気根腐れ病, 葉斑病, うどんこ病

• 予防:換気と採光を維持し、過密状態を避ける。.
• コントロール:初期にカルベンダジム 800 倍またはチオファネートメチル 1000 倍を 7-10 日ごとに 1 回、2-3 回散布する。根腐れの場合は、株を掘り上げ、腐った根を切り落とし、消毒して植え替える。.

(2) Pests: Aphids, Spider Mites, Cabbage Worms

• アブラムシ:1500 倍のイミダクロプリド溶液を散布する。.
• ハダニ:アバメクチン1000倍液を葉裏を中心に散布する。.
• Cabbage Worms:手摘みまたは1000倍ラムダ-シハロトリン溶液を噴霧する。.
• エコロジー・コントロール:ミントやニンニクなど、害虫を寄せ付けない植物を植える。.

8. Harvesting & Utilization

1. 収穫期: Ornamental flowers—harvest when fully open and most vibrant; cut flowers—harvest at semi-open stage for longer vase life; seeds—harvest when capsules mature and dehisce, collect promptly to avoid scattering.
2. 収穫方法: Cut cut flowers at stem base with scissors on sunny mornings after dew dries; pick mature capsules for seeds, dry and rub to collect seeds.
3. Processing & Utilization: Fresh cut flowers have 7-10 day vase life for floral arrangements; dry seeds for next year’s sowing; harvest entire plant during flowering, wash and dry for medicinal use.
4. 種子保存: Select healthy plants with beautiful flowers and vibrant colors for seed saving. Collect and clean seeds, remove impurities and shrunken grains, store in sealed containers in a dry, cool, well-ventilated place.