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| Spiraea japonica Japanese spireaThis species comprises a large group of common small broad-rounded shrub cultivars with small pink, or sometimes white, flowers borne in flat-topped clusters in the summer. Cultivars listed as belonging to S. x bumalda and S. albiflora are appropriately classified as S. japonica, although most U.S. nurseries list cultivars under these other species names.| Habit: | Broad-rounded and somewhat flat-topped with numerous fine upright branches, dense, uniform | | Size: | 2-4' high, depending upon cultivar | | Color: | Dark green on the species type, cultivars vary | | Texture: | Medium-fine to fine | | Hardiness: | Zone 4a USDA | | Habitat: | Japan | | Family: | Rosaceae | |
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