"Stewart Robert Hinsley" wrote ...

Emrys Davies writes
It has blue forget-me-not like flowers at the moment, has large foxglove
like leaves and is a prolific self seeder. About 15"x15".

Green alkanet (Pentaglottis sempervirens).

Get rid of it asap, the roots are long and brittle and it will regrow from
any piece. Glyphosate is your friend.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK