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Pencil cedar 'Glauca'
Juniperus virginiana
'Glauca'
Growth Characteristics of Pencil Juniper 'Glauca' Pencil Juniper 'Glauca' (Juniperus virginiana 'Glauca') is an evergreen conifer characterized by its silvery-blue leaves. This plant grows upright, consistently maintaining an ornamental form, and can reach a maximum height of approximately 12 meters. It is highly cold-hardy and adapts well to the Korean climate. Propagation Methods 'Glauca' is primarily propagated by cuttings. In the summer, cut healthy stems to a length of about 10–15 cm, plant them in well-draining soil, and maintain moisture. After planting, manage the plant in a shaded location to encourage root development. Cultivation Methods - Soil: It prefers well-draining soil. It adapts well to acidic to neutral soils. - Sunlight: While it requires sufficient sunlight, it can also thrive in partial shade. - Watering: As a drought-tolerant plant, it does not require frequent watering once planted. In particular, well-grown mature trees require relatively less water management. - Fertilizer: It is recommended to apply general slow-release horticultural fertilizer in the spring. Uses in the Garden'Glauca' is highly popular as a garden tree due to its shape and color. It can be planted as a hedge or used as a standalone landscaping tree. Additionally, harmonious placement with other plants can further enhance the landscape. Important Pests and Control Methods Major pests include aphids, spider mites, and patch disease. - Aphids: Infestations can be suppressed by providing sufficient ventilation around the plant, and organic insecticides can be used if necessary. - Spider Mites: Since they prefer dry environments, maintain appropriate humidity around the plant. Harmless insecticidal soap can be used if needed. - Patch Disease: Avoid overwatering and prevent and treat using organic oils or appropriate fungicides. With proper care and control methods, you can maintain a healthy 'Glauca' and enjoy its beauty in the garden for a long time.
Plant Family
Cupress family
Height
6~7.5m
Spread
180~240cm
Colors
green
Bloom Period
March to August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-30°C
Pencil cedar 'Gray All'
Juniperus virginiana
'Grey Owl'
Pencil juniper
Juniperus virginiana