beautiful blue flowers of symphytum caucasicum, also known as caucasian comfrey, blooming in spring park .blue comfrey with

bed beinwell bloom bloomer blossom blue botany bright bud candid caucasian caucasicum closeup color comfrey decoration design field flora floral flower garden green group head herb landscape leaf leaves may meadow medicinal natural nature ornamental outdoor park petal plant purple science selective spring summer symphytum wild