Historical clue formulations

• Green often found in mixed greens — 2025-06-01
• Salad green also known as "rocket" — 2023-05-28
• Salad green — 2020-01-06
• Peppery salad green — 2019-07-15
• Plant called "rocket" outside the U.S. — 2015-01-31
• Salad green — 2010-05-23
• Salad bar offering — 2007-08-09
• Member of the mustard family — 2003-09-27
• Popular salad ingredient — 2000-07-16