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Halla lettuce
Crepidiastrum hallaisanensis
We will provide information on the growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases, as well as control methods, of Lactuca hallaisanensis. Growth Characteristics Lactuca hallaisanensis is a perennial herb belonging to the Asteraceae family and grows wild primarily at the foot of Mt. Halla on Jeju Island. It prefers cool, humid environments in alpine regions and grows to a height of approximately 30 to 50 cm. The leaves are alternate and deeply pinnately divided, and the flowers are small, yellow, and bloom during the summer. Propagation Methods Seed propagation is the most effective method. It is best to collect seeds in the autumn and sow them the following spring. Seeds should be stored in a dark, cool place, and it is recommended to refrigerate them for about two weeks before sowing to increase the germination rate. Cultivation Methods - Environment: Since it prefers cool, humid alpine regions, well-drained soil is suitable. - Watering: Be careful not to overwater; it is best to water when the surface soil is dry. - Fertilizer: Apply an appropriate amount of organic fertilizer in spring and autumn. - Sunlight: It thrives in partial shade, so cultivate it in a location with some shade rather than direct sunlight. Uses in the Garden Halla japonica has beautiful leaves, making it suitable as an accent plant for garden meadows or flowerbeds. Additionally, its yellow flowers add vibrancy to the garden during the summer. Important Pests and Control Methods - Aphids: Suppress aphid infestations in the early stages through periodic watering, and use eco-friendly insecticides if necessary. - Powdery Mildew: Maintain good ventilation and avoid overwatering; remove infected leaves immediately. If necessary, pesticides suitable for organic farming can be used. Other points to note: Since the plant is sensitive to environmental conditions, its growth can vary, so it is important to consider local climate conditions when cultivating it.
Plant Family
Asteraceae
Height
3~10cm
Colors
yellow
Bloom Period
August to October
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-10°C
Yongseolchae
Lactuca indica
var.
dracoglossa
Lailia Sincorana
Laelia sincorana