75mm pot
*90-120cm h
*Herbaceous perennial
*Brilliant purple-blue flowers late summer to early autumn
*Full sun with constant moisture, shadier spot in drier conditions (ideally woodland, bogs,beside streams), protect from hot afternoon sun in warmer areas
*Likes damp to wet soil (bog gardens) but will grow in drier situations with reliable moisture
*High frost tolerance
*Toxic if eaten
*Attracts butterflies and nectar birds