| No. | Cultivar Name | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'M Go Blue' | Blue/Green | | - | Hybrid | Unknown | July into August | Schmidt, Bevie | .2009 |
|
2
| 'Magic Carpet' | Med-Green | Marginal | Yellow | Sport | Light-Purple | August | Duback, Robyn | .1998 |
|
3
| 'Mandelbrot Set' | Light-Green | | - | Hybrid | Unknown | June | Nyikos, Frank | .2011 |
|
4
| 'Marlu's Clayton' | Yellow | | - | Hybrid | Near-White | June into July | Overhiser, Martin | .2014 |
|
5
| 'Marmalade on Toast' | Dark-Green | Medial | Yellow | Sport | Pale-Lavender | July into August | Fransen, Marco & Fransen, Joyce | --NR-- |
|
6
| 'Marýke Lokike' | Blue/Green | | - | Hybrid | Unknown | June into July | Lokies, Martin | .2008 |
|
7
| 'Mason Hollow Lemon' | Light-Green | Marginal | Dark Green | Sport | Light-Purple | July | Anderson, Chuck & Anderson, Sue | --NR-- |
|
8
| 'Maya' | Dark-Green | Medial | Light Green | Sport | Pale-Lavender | July into August | Meissner, O. & Ruh, Peter | .1996 |
|
9
| 'Mean Green Thing' | Med-Green | | - | Sport | Unknown | - | Fransen, Marco | --NR-- |
|
10
| 'Megan's Angel' | Dark-Green | Marginal | White | Unknown | Unknown | - | Beilstein, Doug & Beilstein, Mardy | .2009 |
|
11
| 'Melissa Anne' | Med-Green | Streaked | White | Sport | Pale-Lavender | July into August | Kerr, Jeff | .2000 |
|
12
| 'Merci Beaucoup' | Yellow-Gold | | - | Hybrid | Pale-Lavender | August to September | Bowe, Dave | .2019 |
|
13
| 'Michael T. Rozanski' | Blue/Green | | - | Hybrid | Near-White | June into July | Chamberlain, Steve | .2004 |
|
14
| 'Michigander' | Med-Green | Marginal | Yellow | Sport | Near-White | June into July | Struhar, Bill | .2018 |
|
15
| 'Midnight at the Oasis' | Dark-Green | Medial | White | Sport | Med-Lavender | July into August | Naylor Creek Nursery & The American Hosta Society | .2019 |
|
16
| 'Mint Chip' | Med-Green | | - | Hybrid | Pale-Lavender | June into July | Shadrack, Mike | .2011 |
|
17
| 'Minuteman' | Med-Green | Marginal | White | Sport | Med-Lavender | July into August | Machen, John | .1994 |
|
18
| 'Minutini' | Light-Green | | - | Hybrid | Light-Purple | August | Zilis, Mark | .2009 |
|
19
| 'Miss Grace' | Med-Green | | - | Unknown | Unknown | July into August | Wrede, Arthur | .2005 |
|
20
| 'Miss Poland' | Med-Green | Streaked | Yellow | Sport | Med-Lavender | June into July | Kijanska, Poll | .2019 |
|
21
| 'Miss Sophie' | Light-Green | | - | Hybrid | Med-Lavender | - | Fischer, Dr Ulrich | --NR-- |
|
22
| 'Missy Marie' | Yellow-Gold | | - | Hybrid | Near-White | July | Husemann, Jim | .2020 |
|
23
| 'Mister Green Genes' | Med-Green | | - | Hybrid | Pale-Lavender | July into August | Goodwin, Randy | .2017 |
|
24
| 'Modern Dance' | Blue/Green | Streaked | White | Hybrid | Med-Lavender | August to September | Van Eechaute, Danny | .2014 |
|
25
| 'Monkey Fist' | Med-Green | Streaked | Speckles | Unknown | Unknown | July into August | Seaver, Charles | .1999 |
|
26
| 'Moon Glow' | Yellow | Marginal | White | Hybrid | Near-White | July into August | Anderson, Kenneth | .1977 |
|
27
| 'Moon Split' | Light-Green | Medial | Dark Green | Sport | Pale-Lavender | July into August | Van Eechaute, Danny | .2010 |
|
28
| 'Mop Top' | Dark-Green | | - | Hybrid | Pure-White | - | Beilstein, Doug & Beilstein, Mardy | .2009 |
|
29
| 'Mount Royal' | Med-Green | | - | Hybrid | Pure-White | August | Montreal Botanical Garden | .1983 |
|
30
| 'Mountain Pride' | Med-Green | | - | Hybrid | Unknown | July into August | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
31
| 'Mouse on the Moon' | Blue/Green | Marginal | White | TC Sport | Med-Lavender | Unknown | Zilis, Mark & Solberg, Robert | --NR-- |
|
32
| 'My Little Genie' | Med-Green | Marginal | White | Hybrid | Unknown | - | Unknown | --NR-- |
|
33
| 'My Lucky Star' | Blue/Green | Marginal | White | Sport | Med-Lavender | July into August | Heemskerk, Gerardus | .2012 |
|