Japanese spirea

Spiraea japonica 'Alpina’

Photo/Illustration: 
Michelle Gervais
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Japanese spirea (Spiraea japonica 'Alpina’)
spy-REE-ah jah-PON-ih-kah
Genus:  Spiraea
This low-growing, clump-forming shrub has a spreading habit, reaching 10 inches tall. Slender branches spread across the ground. Foliage is light blue-green to 1 inch long. In late June, this plant bears clusters of pink flowers; bloom continues into September if deadheaded.
Noteworthy Characteristics:  Makes a good front-of-the-border or edge-of-the-woods garden plant.
Care:  Grow in fertile, moist but well-drained soil and full sun.
Propagation:  Take greenwood cuttings in summer.
Problems:  Dieback, fireblight, powdery mildew, and Cylindrocladium leaf spot can affect it. Weevils, scale insects, and aphids.

Overview

Height
6 in. to 12 in.
Spread
1 ft. to 3 ft.
Growth Habit
Spreads
Light
Full Sun Only
Moisture
Medium Moisture
Characteristics
Showy Flowers
Bloom Time
Summer
Flower Color
Pink Flower
Uses
Beds and Borders,
Ground Covers
Style
Rock Garden
Seasonal Interest
Summer Interest
Type
Shrubs

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