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| Hardiness zone | 3 | | Maximum height | 150 cm / 5' | | Maximum width | 50 cm / 20" | | Exposure | Sun / Half-shade | | Plants attracting birds | No | | Fragrant plants | No | | Notes : Spiraea-like flowers from June to August with serrated leaves. Called 'Queen of the prairies' in US, carmine-pink flowers on leafy stems. |
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