Purple ____ was once thought to improve dairy cow yields (4,5)
I believe the answer is:
milk vetch
(Another definition for milk vetch that I've seen is " Plant sometimes grown for fodder".)
I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.