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| Hardiness zone | 5 | | Maximum height | 1,5m / 5' | | Maximum width | 1,5m / 5' | | Exposure | Sun | | Plants attracting birds | Yes | | Fragrant plants | Yes | | Notes : Semi herbaceous shrub with upright arching shape that bloom in late summer. Flower spikes in dark violet blue with orange eye are long and fragrant. |
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