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Thistle
Cirsium japonicum
var.
spinossimum
Cirsium japonicum var. spinossimum is a perennial herb native to East Asia, including Korea. We have compiled information regarding the characteristics of this plant. Growth Characteristics - Environment: Cirsium japonicum thrives in sunny locations and prefers well-drained soil. - Size: It typically grows to a height of 30 to 100 cm. - Leaves: The leaves are green with thorns along the edges. - Flowers: Pink or purple flowers bloom during the summer. Propagation Methods - Seeds: Cirsium japonicum can be propagated by seeds. Collect the seeds after flowering and sow them in the autumn or spring. - Root Division: It can also be propagated by dividing the roots; early spring or late autumn is generally suitable for this method. Cultivation Methods - Soil Preparation: Plant in well-drained soil, and supplement nutrients using compound fertilizer if necessary. - Watering: Water moderately, but be careful not to overwater. - Sunlight: It requires sufficient sunlight and does not grow well in the shade. Uses in the Garden Due to its decorative value, thistles can be planted in gardens and used as focal points in flower beds. In particular, its showy flowers can attract bees and butterflies, making it advantageous for creating ecological gardens. Important Pests and Control Methods - Diseases: It is generally resistant to diseases, but fungal diseases may occur in overly humid environments. - Control: Improve drainage and use antimicrobial agents if necessary. - Pests: Aphids and Japanese brooms may infest the plant. - Control: If discovered early, wash them off with water or remove them using organic insecticides. You can grow thistles successfully with proper care and a suitable environment.
Plant Family
Asteraceae
Height
50~100cm
Colors
purple
Bloom Period
June to August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-15°C
water thistle
Cirsium nipponicum
Narrow-leaved thistle
Cirsium japonicum
f.
nakaianum