Calmia angustifolia f. rubra

Kalmia angustifolia f. rubra

Kalmia angustifolia f. rubra is a shrub that produces attractive pink or red flowers and is native primarily to North America. The following is information regarding this plant's growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases and control methods.
 - Growth Characteristics:
- Height: Usually grows up to 0.3 to 1.5 meters.
- Leaves: Narrowly oval-shaped, typically 2 to 4 cm in length.
- Flowers: Red or pink flowers bloom in May and June.
 - Propagation Methods:
- Cuttings: In spring or early summer, cut healthy branches, treat them with a rooting agent, and plant them in potting soil.
- Seeds: Collect mature seeds in the fall and sow them the following spring.
- Fruits: Ripen in the fall; sowing immediately after harvesting results in a high germination rate. 3. Cultivation Method:
- Soil: Grows well in acidic soil (saturation 6.0 or lower). A well-drained location is ideal.
- Light Intensity: Can adapt to conditions ranging from partial shade to full sun.
- Watering: Avoid overwatering; additional watering is necessary when moisture is insufficient.
- Fertilizer: It is recommended to apply an appropriate amount of acidic fertilizer in the spring.
 - Use in the Garden:
- Can be placed along garden edges to enhance color contrast.
- Used as an ornamental plant in rock gardens or arboretums.
 - Major Pests and Diseases & Control Methods:
- Diseases: Cultivate in a well-ventilated location to prevent issues such as leaf blight.
- Pests: Aphids and scale insects may occur, requiring appropriate pesticide treatment.
- Integrated Control: Proper soil management, healthy planting, and periodic pest inspections are important for preventing diseases and pests. Please refer to the methods above to grow a healthy Calmia angustifolia f. rubra.

Plant Family	Rhododendron family
Height	30~90cm
Spread	120~180cm
Colors	pink
Bloom Period	June~July
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-30°C

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