“Cauliflower is just scared broccoli”

“Did you know that cauliflower is just scared broccoli” is a joke line of comedian Harland Williams. The line has been cited in print since at least 2009.
 
Broccoli is green, but “scared broccoli” (cauliflower) is white.
   
 
Wikipedia: Harland Williams
Harland Reesor Williams (born November 14, 1962) is a Canadian-American actor, comedian, author, artist, musician and radio personality.
   
Comedy: The Weird Theories of Harland Williams—UHC TV
Vidqt.com
Comedy: The Weird Theories of Harland Williams—UHC TV
Text of the video(*)
did you know that cauliflower is just scared broccoli
 
Rudiology
20 OCT/09
is cauliflower scared broccoli…
is cauliflower scared broccoli, or is broccoli envious cauliflower?
 
Confessions of a Dumb, White Guy
Tuesday, October 27, 2009
Random Acts of Shifeness
(...)
. I dislike broccoli intensely so let’s just get that out of the way. Anyway it looks a great deal like cauliflower so do you think it is envious of cauliflower? Wait for it. It is like a joke grenade. Or perhaps cauliflower is just scared broccoli? Something to think about.
 
Twitter
J.R. Celski
‏@jrcelski
“did you know that cauliflower is just scared broccoli?” @harlandwilliams
10:51 PM - 3 Feb 2010
 
Twitter
amy wood
‏@whatgatsby
Cauliflower is just scared broccoli. pic.twitter.com/p3OKHTjEmq
12:00 PM - 9 Sep 2013