Historical clue formulations

• Showy flowers native to Mexico — 2023-11-26
• Flowers named for a Swedish botanist — 2004-08-29
• Some ornamentals — 2003-04-26
• Showy flowers — 2002-10-12
• Flowers named for a Swedish botanist — 2001-11-04
• Flowers named for a Swedish botanist — 2000-12-08
• Bright-colored blooms — 1998-06-14
• Showy flowers — 1997-09-13