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Japanese Spiraea

Spiraea japonica

Also known as Japanese Spirea, Japanese Meadowsweet

shrub☀️ full sun💧💧 moderate water❄ Hardy: Zone 4b – Zone 9b

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A deciduous ornamental shrub valued for its delicate pink or white flower clusters and attractive foliage that often displays colorful spring and summer tones. Hardy and low-maintenance, it's useful in perennial borders, mass plantings, and pollinator gardens.

Why grow it

Japanese spiraea offers reliable summer color and fine texture in a compact deciduous shrub, flowering later than many spring-blooming spiraeas and thus extending the seasonal interest of mixed borders. It tolerates a wider range of soil conditions than some ornamental shrubs and requires minimal pruning, making it practical for low-input landscapes where consistent summer bloom is desired.

Watch out for

This species can spread via self-seeding in favorable conditions, so deadheading spent flowers or monitoring for volunteer seedlings may be necessary to prevent unwanted spread beyond intended planting zones. It prefers consistent moisture during establishment and can show stress (leaf scorch or reduced flowering) in drought conditions without supplemental watering during dry summers.

Overview

Form
Mounding
Growth Rate
moderate
Size
1.5–2′ tall × 1.5–4′ wide
Dormancy
deciduous
Family
Rosaceae
HedgerowPollinators & beneficial insects

Native Range

Japan, China

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

Notable Cultivars

Goldflame features vibrant orange-gold new growth maturing to yellow-green; Little Princess is a compact dwarf form; Magic Carpet has striking red-tipped new foliage. All are prized for ornamental foliage and continuous summer blooms.

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Companion Planting

Plants well with