Ser. Oriental Lace: A cultivar or variety within the species Hydrangea serrata.
Common Names by Region:
English: Oriental Lace Hydrangea
Japanese: アジサイ (Ajisai)
Description:
Hydrangea serrata is a deciduous shrub known for its lacecap flowers, which consist of small, fertile flowers surrounded by larger, showy sterile flowers. The flowers typically bloom in shades of blue, pink, or white, depending on soil pH. The leaves are serrated, giving the plant its species name, and are generally oval-shaped, with a pointed tip. Hydrangea serrata typically grows to a height and spread of 3 to 6 feet (0.9 to 1.8 meters) and has a rounded, bushy habit.
Known Range:
Natural Range:Hydrangea serrata is native to Japan and Korea, where it is found growing in forests and along stream banks in mountainous regions.
Cultivation: It is widely cultivated as an ornamental plant in temperate regions worldwide.
Care Requirements:
Light:Hydrangea serrata prefers partial shade to full sun. In hot climates, afternoon shade can help prevent wilting.
Soil: Well-draining, rich soil with plenty of organic matter is ideal. Soil pH affects flower color, with acidic soil producing blue flowers and alkaline soil producing pink flowers.
Watering: Keep the soil consistently moist, especially during periods of drought. Mulching can help retain moisture.
Pruning: Prune Hydrangea serrata in late winter or early spring to remove dead or weak branches and shape the plant. Avoid heavy pruning, as it can reduce flowering.
Fertilizing: Apply a balanced, slow-release fertilizer in spring, following package instructions.
Pests and Diseases: Watch for common hydrangea pests such as aphids and spider mites. Diseases such as powdery mildew and leaf spot can occur, especially in humid conditions. Proper spacing, good air circulation, and avoiding overhead watering can help prevent these issues.
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