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| Hardiness zone | 3 | | Maximum height | 1,75m / 6' | | Maximum width | - / - | | Exposure | Sun / Half-shade | | Plants attracting birds | No | | Fragrant plants | No | | Notes : The rich indigo-blue 10-15 cm (4-6") flowers with deeply furrowed mid-ribs and white stamens are a favorite of flower arrangers. The blooming period is June to September non-stop. The non-clinging stems are very sturdy and are most attractive if grown through a small shrub, or attached to a support. Pruning group C. |
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