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Swallowtail Orchid Grandiflora
Platanthera grandiflora
Growth Characteristics Platanthera grandiflora is an orchid native to Korea that thrives in partial shade or humid environments. It blooms with beautiful purple flowers from late spring to early summer and grows to a height of approximately 30–60 cm. This plant particularly prefers soil with good drainage and air circulation. Propagation Methods Platanthera grandiflora is primarily propagated by seeds or division. Propagation by seeds occurs naturally, while division involves dividing the root portion of a mature plant and planting it in the autumn or winter. Division is considered a faster and more reliable method. Cultivation Methods - Location Selection: Choose a location with partial shade or plenty of morning sunlight. - Soil Preparation: Well-draining soil is required; mix in leaf mold or sand. - Planting: Plant in early spring or autumn. Maintain a spacing of 20–30 cm between plants. 4. Watering: Water regularly to ensure the soil always remains slightly moist. - Fertilization: Replenish nutrients using slow-release fertilizer in the spring. Uses in the Garden The Swallowtail Orchid is excellent for planting in shady gardens or around wetlands, and it blends harmoniously with other shade-loving plants. In particular, it adds a natural feel to green landscaping. Important Pests and Control Methods - Diseases: Root rot is a common occurrence. Caution is required as it is prone to occur in poorly drained soil. - Control Methods: Improve soil drainage and use appropriate pesticides if necessary. - Pests: Aphids and other leaf-damaging insects may be present. - Control Methods: Control them periodically using artificial methods or soap solutions; in severe cases, appropriate insecticides may be used. If you understand these characteristics well and manage the plant properly, the Swallowtail Orchid grandiflora can add special charm to your garden with its beautiful flowers.
Plant Type
Plant Family
Orchid family
Height
60~120cm
Spread
Colors
pink
Bloom Period
June to August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-10°C
Twin swallows
Platanthera densa
Swallowtail Orchid, Blepariglottis
Platanthera blephariglottis