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Seondunggulle
Polygonatum grandicaule
Growth Characteristics Polygonatum grandicaule is a perennial herbaceous plant that typically grows to a height of 30 to 100 cm. It thrives in shady areas within forests and prefers fertile, moist soil. The leaves are broad and elongated, arranged in two rows on each stem. The flowers are white or light green and bloom from May to June. Propagation Methods This plant is primarily propagated by root division and seeds. Root division is possible in spring or autumn; simply divide and plant healthy roots. Seed propagation takes a relatively long time, so it is recommended to harvest mature seeds in the autumn and sow them directly. Cultivation Methods - Soil: Fertile, well-drained soil is preferred, and it grows well even in slightly acidic soil. - Light Conditions: It thrives in partial or complete shade, and direct sunlight should be avoided. - Watering: Water to keep the soil consistently moist, but good drainage is important. - Fertilizer: Applying organic fertilizer in the spring helps with growth. Uses in the GardenSolidago grandicaule is a plant well-suited for natural gardens or shaded flowerbeds. In forest gardens, it blends well with other shade plants and is effective when planted in clusters. Important Pests and Control Methods - Diseases: It is primarily susceptible to leaf blight and root rot. Prevent these diseases through proper drainage and ventilation; if disease occurs, remove the affected parts and apply fungicides. - Pests: Aphids, along with slugs, are the main pests. Environmentally friendly methods include removing slugs by hand or utilizing natural predators that consider the ecosystem. For chemical control, appropriate insecticides can be used. With proper care and attention, Solidago grandicaule can provide excellent decorative effects in the garden.
Plant Type
Plant Family
Lily family
Height
40~90cm
Spread
Colors
green
Bloom Period
April to June
Water Needs
commonly
Exposure
semi-shaded area
Freezing Resistance
-20°C
Solomon's seal
Polygonatum inflatum
Anmyeonyongdanggulle
Polygonatum × desoulavyi