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PlantSnap
Plant Care
Japanese spirea
(Spiraea japonica)
Also Known As
Japanese spirea, Japanese spiraea, Pink spiraea, Spiraea, Japanese meadow-sweet
About This Plant
Spiraea japonica is a deciduous flowering shrub that is native to Japan, China, and Korea. It is known for its beautiful pink flowers that bloom in the summer.
Plant Care Instructions
Outdoor Size Range
2-3 feet (60-90 cm) tall and 3-4 feet (90-120 cm) wide
Light Requirements
Spiraea japonica prefers full sun to partial shade. It can tolerate some shade but will not bloom as well.
Humidity Needs
Spiraea japonica does not have any specific humidity requirements.
Fertilizing Schedule
Fertilize the plant in the spring with a balanced fertilizer. Do not fertilize after mid-summer, as this can stimulate new growth that will not have time to harden before winter.
Pruning Guidelines
Prune Spiraea japonica in late winter or early spring before new growth begins. Cut back the previous year's growth to 2-3 inches (5-8 cm) above the ground.
Common Pests and Diseases
Common pests and diseases for Spiraea japonica include aphids, spider mites, and powdery mildew.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
Water the plant regularly, especially during hot and dry periods. Make sure the soil is well-drained, as the plant does not like to sit in wet soil.
Temperature Range
This plant can tolerate a wide range of temperatures, from -30°F (-34°C) to 100°F (38°C).
Growing Season
The growing season for Spiraea japonica is from late spring to early fall.
Growing Difficulty Level
Spiraea japonica is a relatively easy plant to grow. It is tolerant of a wide range of conditions and does not require much maintenance.
USDA Hardiness Zones
Spiraea japonica is hardy in USDA zones 4-8.
Did You Know?
In Japan, Spiraea japonica is known as yamamomo, which means 'mountain peach' because its small pink flowers resemble miniature peaches.
