| No. | Cultivar Name | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Mack the Knife' | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | Dishon, Jim | .1996 |
|
2
| 'Major Tom' | Dark-Green | - | - | Unknown | - | - | Scheer, Alttara | --NR-- |
|
3
| 'Man on the Moon' | Blue/Green | Streaked | White | TC Sport | - | - | Beilstein, Doug & Zilis, Mark | .2009 |
|
4
| 'Mariposa' | Med-Green | Streaked | Yellow | Hybrid | Med-Lavender | June into July | Dye, Kay | .2017 |
|
5
| 'Marvelous' | Blue/Green | Marginal | White | Hybrid | Near-White | June into July | Goodwin, Randy | .2021 |
|
6
| 'Merry Sunshine' | Med-Green | Marginal | White | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .1998 |
|
7
| 'Michael's Mud Pie' | Med-Green | - | - | Unknown | - | June | Markland, Sandie | .2002 |
|
8
| 'Midas Touch' | Yellow | - | - | Hybrid | Near-White | July | Aden, Paul | .1978 |
|
9
| 'Mighty Min' | Med-Green | - | - | Hybrid | Pale-Lavender | June into July | Gilligan, Madelon | .2013 |
|
10
| 'Milkmaid' | Med-Green | Streaked | White | Unknown | - | June into July | Harvey, Janet | .2012 |
|
11
| 'Mirth' | Light-Green | Marginal | Green | Hybrid | Med-Lavender | August to September | Matsubayashi, Nagao & Ruh, Peter & Ruh, Jean | .2001 |
|
12
| 'Miss American Pie' | Dark-Green | - | - | Hybrid | Light-Purple | August to September | Wasitis, Chick | .2008 |
|
13
| 'Monet' (Zilis) | Blue/Green | Medial | Green | TC Sport | Near-White | July into August | Zilis, Mark | .2011 |
|
14
| 'Mood Indigo' | Blue/Green | - | - | Hybrid | Pure-White | June into July | Ward, Dr Dick & Ward, Jane | .1996 |
|
15
| 'Moonrise' | Light-Green | Marginal | Yellow | Hybrid | - | June into July | Ward, Dr Dick & Ward, Jane | .2010 |
|
16
| 'Morning Glow' | Yellow | - | - | Hybrid | Near-White | June into July | Johnson, Greg | .2004 |
|
17
| 'Mr Z' | Blue/Green | - | - | Hybrid | Near-White | August to October | Zilis, Mark & Schwarz, Jim & Schwarz, Karen | .2014 |
|
18
| 'My Friend Bertha' | Blue/Green | - | - | Sport | Light-Purple | July | Walters Gardens | --NR-- |
|
19
| 'My Mom' | Dark-Green | Streaked | Yellow | Hybrid | Near-White | June | Kuenster, Rod | .2008 |
|