Looks like a very intense blue form of C.flexuosa. Heads of very intense almost turquoise-blue flowers Apr-Jun, almost blue leaves from reddish petioles, 40cm.

Genus: CORYDALIS
Variety: CURVIFLORA subsp.ROSTHORNII
Cultivar: ‘BLUE HERON’ DJHC 0615
Plant family: Papaveraceae
Hardiness zone: 
Height: 21-50cm.

______

Other data

Foilage colour
Foliage season
Flower colour
Flowering season
Soil moisture
Shadiness
Hardiness

Plant ID 10187