Ann & Steve Toon / Green alkanet (Pentaglottis sempervirens) growing in late summer, Northumberland, UK, September

Ernie Janes / Green alkanet (Pentaglottis sempervirens) flowers, UK

Colin Varndell / Green-veined white butterfly (Pieris napi) feeding on Alkanet flower. Dorset, UK, May

Kim Taylor / Cuckoo Bee (Nomada fulvicornis) flying up from Green Alkanet flower (Pentaglottis sempervirens). UK

David Pike / Green Alkanet {Pentaglottis sempervirens} Water Newton, Cambridgeshire, UK, April

Tony Evans / Green alkanet {Pentaglottis sempervirens} and Cow Parsley in flower, Cotswolds, UK

Tony Evans / Green alkanet {Pentaglottis sempervirens} and Cow parsley flowering, Cotswolds, UK

Kim Taylor / Longhorn beetle (Rhaguim mordax) male flying past Green Alkanet (Pentaglottis sempervirens) Surrey, England, digital composite,