| 2026-06-07 | National flower of Mexico |
| 2025-04-08 | Showy flower native to Central America |
| 2024-05-01 | "The Black ___" (1987 crime fiction best seller) |
| 2023-08-06 | National flower of Mexico |
| 2022-12-04 | Flower cultivated by the Aztecs |
| 2022-11-11 | Popular paper flower variety |
| 2022-10-11 | Mexico's national flower |
| 2020-03-14 | Mexico's national flower |
| 2017-02-26 | Flower named for a Swedish botanist |
| 2016-05-12 | Mexican bloom |
| 2015-05-26 | Mexico's national flower |
| 2012-11-18 | Colorful perennial |
| 2011-05-11 | "The Black ___" (2006 film) |
| 2010-12-29 | Mexican bloom |
| 2010-08-12 | Mexico's national flower |
| 2010-07-28 | Mexico's national flower |
| 2010-03-14 | Flower once cultivated for food |
| 2008-07-20 | National flower of Mexico |
| 2006-06-25 | National flower of Mexico |
| 2005-02-25 | Pale violet |
| 2004-09-14 | Veronica Lake film "The Blue ___" |
| 1999-10-04 | Showy bloom |
| 1996-07-21 | Showy flower |
| 1996-06-14 | Cactus___ |
| 1994-07-21 | Black_____ (sensational 1947 murder case) |
| 1993-11-25 | Flower named for a Swedish botanist |