Double, upright purple-black flowers.
|Common name: Granny's Bonnet|
|Flowering period: May to July.|
|Growing conditions: Sun or part shade.|
|Special note: Cottage garden favourite.|
|Typical mature height: 30 inches ( 76 cms )|
|Hardiness: Hardy. Should withstand average to cold UK winters.|
|This is an insect-friendly plant which gives bees and other insects easy access to nectar and pollen.|