No. | Cultivar Name | Leaf Color | Plant Size | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
1
| 'I'm So Blue' | Blue/Green | Large | | | Unknown | Near-White | June | Schwarz, Jim | .1999 |
2
| 'I'm So Pretty' | Blue/Green | Large | | | Sport | Pale-Lavender | July | Schwarz, Jim | .2003 |
3
| 'I'm the Mom' | Blue/Green | Medium | Streaked | Yellow | Unknown | Unknown | Unknown | Ziarek, Ken | --NR-- |
4
| 'M Go Blue' | Blue/Green | Large | | | Hybrid | Unknown | July to August | Schmidt, Bevie | .2009 |
5
| 'Macabe Blue' | Blue/Green | Medium | | | Unknown | Near-White | July | Summers, Alex | --NR-- |
6
| 'MacBenedict' | Blue/Green | Large | Streaked | Yellow | Hybrid | Pale-Lavender | July | Elslager, Ed | .2002 |
7
| 'Mad About Blue' | Blue/Green | Medium | | | Hybrid | Pale-Lavender | July | Zilis, Mark | .2009 |
8
| 'Maddren' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | June to July | Gilligan, Madelon | .2012 |
9
| 'Madelon' | Blue/Green | Giant | | | Unknown | Unknown | Unknown | Gilligan, Madelon | --NR-- |
10
| 'Madelynn' | Blue/Green | Large | | | Unknown | Pure-White | June | Darr, D. & Wade, Van | .2007 |
11
| 'Madison' | Blue/Green | Large | | | Hybrid | Pale-Lavender | June to July | Sanford, Matt | .2011 |
12
| 'Madison Mine' | Blue/Green | Large | | | Hybrid | Pale-Lavender | July to August | Zilis, Mark & Schwarz, Jim & Schwarz, Karen | .2011 |
13
| 'Magda' | Blue/Green | Small | Marginal | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
14
| 'Maggie May' | Blue/Green | Large | | | Hybrid | Pale-Lavender | July | Wasitis, Chick | .2001 |
15
| 'Magic Moment' | Blue/Green | Medium | | | Unknown | Unknown | June to July | Ward, Dr Dick & Ward, Jane | .2015 |
16
| 'Magic Mountain' | Blue/Green | Large | | | Hybrid | Pale-Lavender | June to July | Ward, Dr Dick & Ward, Jane | .2003 |
17
| 'Magica' | Blue/Green | Large | | | Hybrid | Unknown | Unknown | Dupre, Dirk | --NR-- |
18
| 'Magical Mouse Ears' | Blue/Green | Miniature | | | Sport | Light-Purple | July | Fransen, Marco | --NR-- |
19
| 'Magnificent Michele' | Blue/Green | Large | | | Hybrid | Pale-Lavender | July | Ward, Dr Dick & Ward, Jane | .2005 |
20
| 'Magnificent Mile' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Wols, Dan | --NR-- |
21
| 'Maiden Voyage' | Blue/Green | Large | Streaked | Yellow | Hybrid | Unknown | Unknown | Wols, Dan | --NR-- |
22
| 'Main Street Streaker' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Smith, Roger | --NR-- |
23
| 'Maize and Blue' | Blue/Green | Medium | Streaked | Yellow | Unknown | Unknown | Unknown | Wilkins, Dr Jim | .2000 |
24
| 'Majestic Blue' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Aden, Paul | --NR-- |
25
| 'Majesty' | Blue/Green | Large | Marginal | White | Sport | Pale-Lavender | July | Garbe, Richard | .1999 |
26
| 'Major Bedhead' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Vasey, Mike | --NR-- |
27
| 'Majordomo' | Blue/Green | Large | | | Unknown | Near-White | August | Deckert, Emile & Deckert, Jane | .2004 |
28
| 'Making Waves' | Blue/Green | Medium | Marginal | Yellow | Hybrid | Med-Lavender | August | Dean, Don | .2022 |
29
| 'Mama Blue' | Blue/Green | Unknown | Medial | White | Unknown | Unknown | Unknown | Goodwin, Randy | --NR-- |
30
| 'Mammoth Ears' | Blue/Green | Giant | | | Hybrid | Unknown | June to July | Kruer, George | .2009 |
31
| 'Mammoth Halo' | Blue/Green | Giant | | | Sport | Near-White | June to July | Aden, Paul | --NR-- |
32
| 'Man of Steel' | Blue/Green | Large | Marginal | Yellow | Nat-Sport | Pale-Lavender | June to July | Van Eechaute, Danny | --NR-- |
33
| 'Man on the Moon' | Blue/Green | Unknown | Streaked | White | TC Sport | Unknown | Unknown | Beilstein, Doug & Zilis, Mark | .2009 |
34
| 'Mandan' (Wade) | Blue/Green | Large | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
35
| 'Maple Grove' | Blue/Green | Giant | | | Unknown | Unknown | Unknown | Jernigan, Bettie | --NR-- |
36
| 'Maple Leaf' | Blue/Green | Medium | Marginal | Yellow | Sport | Near-White | June to July | Minks, Eldren | .1972 |
37
| 'Marblehead Harbormaster' | Blue/Green | Medium | Streaked | Yellow | Unknown | Unknown | Unknown | Goodenough, Rick | --NR-- |
38
| 'Mardi Gras Parade' | Blue/Green | Medium | Streaked | Yellow | Hybrid | Near-White | July | Vaughn, Kevin | --NR-- |
39
| 'Marge' | Blue/Green | Medium | | | Hybrid | Near-White | June to July | Simpers, Lucille & Soules, Marjorie | .1996 |
40
| 'Margie Weissenberger' | Blue/Green | Miniature | | | Hybrid | Pale-Lavender | June to July | Weissenberger, Henry | .1986 |
41
| 'Margot's Delight' | Blue/Green | Small | Streaked | Yellow | Unknown | Unknown | Unknown | Barham, Dave | --NR-- |
42
| 'Marie Julie' | Blue/Green | Large | Streaked | Yellow | Hybrid | Unknown | Unknown | Cornitensis, Roger | --NR-- |
43
| 'Marie Robillard' | Blue/Green | Large | Marginal | Yellow | Unknown | Near-White | July | Fafard, Serge | --NR-- |
44
| 'Marilyn's Mystery' | Blue/Green | Medium | Marginal | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
45
| 'Marine' | Blue/Green | Small | Streaked | White | Sport | Med-Lavender | July to August | Gilligan, Madelon | .2015 |
46
| 'Marlu's Marshall' | Blue/Green | Large | | | Hybrid | Near-White | June to July | Overhiser, Martin | .2014 |
47
| 'Marquee' | Blue/Green | Medium | Medial | Yellow | Unknown | Unknown | Unknown | Laviana, Marc | --NR-- |
48
| 'Marshfield Harbormaster' | Blue/Green | Large | Streaked | White | Hybrid | Unknown | Unknown | Goodenough, Rick | --NR-- |
49
| 'Martha's Vineyard' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Goodenough, Rick | --NR-- |
50
| 'Marvelous' | Blue/Green | Medium | Marginal | White | Hybrid | Near-White | June to July | Goodwin, Randy | .2021 |
51
| 'Marvelous Millie' | Blue/Green | Medium | | | Unknown | Unknown | June to July | Seaver, Mildred & Walek, Kevin & The American Hosta Society | .2009 |
52
| 'Mary Chastain' | Blue/Green | Unknown | | | Hybrid | Unknown | Unknown | Goodenough, Rick | --NR-- |
53
| 'Mary Jo' | Blue/Green | Small | | | Unknown | Pale-Lavender | July | Stone, David & Ruh, Peter | .1987 |
54
| 'Mary Lou' | Blue/Green | Giant | | | Unknown | Pale-Lavender | July | Banyai, Pauline | .1986 |
55
| 'Mary Marie Ann' | Blue/Green | Small | Medial | White | Hybrid | Med-Lavender | July to August | Englerth, Lawrence | .1982 |
56
| 'Mary Moldovan' | Blue/Green | Medium | Marginal | White | Unknown | Pale-Lavender | June | Soucek, Rachel | --NR-- |
57
| 'Marýke Lokike' | Blue/Green | Medium | | | Hybrid | Unknown | June to July | Lokies, Martin | .2008 |
58
| 'Mary's White Backside' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
59
| 'Master Class' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | June to July | Gilligan, Madelon | .2012 |
60
| 'Mastodon' | Blue/Green | Large | | | Hybrid | Near-White | June to July | Vaughn, Kevin & Walek, Kevin & The American Hosta Society | .2009 |
61
| 'Maui Blue Kitten' | Blue/Green | Medium | | | Hybrid | Unknown | Unknown | Vaughn, William | --NR-- |
62
| 'Maui Blue Surf' | Blue/Green | Medium | Streaked | Yellow | Hybrid | Unknown | June to July | Elslager, Ed | .2004 |
63
| 'Mauna Kea' | Blue/Green | Medium | Streaked | White | Hybrid | Unknown | Unknown | Moore, Jeff | --NR-- |
64
| 'May' | Blue/Green | Small | | | TC Sport | Pale-Lavender | July | Hansen, Hans | .1999 |
65
| 'Mayan Moon' | Blue/Green | Medium | Marginal | Yellow | Sport | Pale-Lavender | July to August | Mitchell, Bill & Walek, Kevin & The American Hosta Society | .2009 |
66
| 'Mayan Seer' | Blue/Green | Large | | | Hybrid | Near-White | June to July | Mitchell, Bill | --NR-- |
67
| 'Mayville' | Blue/Green | Medium | Medial | Yellow | Sport | Pale-Lavender | July | Ruh, Peter | .2003 |
68
| 'McFly' | Blue/Green | Medium | | | Hybrid | Unknown | Unknown | Stadden, Josh | --NR-- |
69
| 'McWilliams #2' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
70
| 'Me and My Shadow' | Blue/Green | Medium | Medial | Green | TC Sport | Near-White | July | Schwarz, Jim | .2003 |
71
| 'Meadowhawk' | Blue/Green | Large | Streaked | Yellow | Hybrid | Unknown | Unknown | Moore, Jeff | --NR-- |
72
| 'Mean Joe Green' | Blue/Green | Medium | | | Hybrid | Med-Lavender | July to August | Zolock, Steve & Zolock, Sarah | .2008 |
73
| 'Megacup' | Blue/Green | Medium | Streaked | Speckles | Hybrid | Pale-Lavender | July to August | Elslager, Ed | .2000 |
74
| 'Melissa' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Schwarz, Jim | --NR-- |
75
| 'Melting Polar Icecaps' | Blue/Green | Medium | Marginal | Yellow | Unknown | Unknown | Unknown | Ziarek, Ken | --NR-- |
76
| 'Memphis Blue' | Blue/Green | Giant | | | Hybrid | Unknown | Unknown | Petryszyn, Olga | .2021 |
77
| 'Menominee' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
78
| 'Merci Marci' | Blue/Green | Small | Marginal | White | Unknown | Med-Lavender | July to August | Asch, Stuart | .2009 |
79
| 'Merle's Foundling' | Blue/Green | Large | | | Unknown | Pale-Lavender | July | Simpers, Lucille | --NR-- |
80
| 'Merlin' (Ward) | Blue/Green | Medium | Marginal | Yellow | Hybrid | Light-Purple | July | Ward, Dr Dick & Ward, Jane | .2003 |
81
| 'Merri Sherri' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Vertz, Mary | --NR-- |
82
| 'Mesa Verde' | Blue/Green | Large | | | Hybrid | Near-White | June to July | Ward, Dr Dick & Ward, Jane | .2004 |
83
| 'Metallica' | Blue/Green | Medium | | | Hybrid | Med-Lavender | August | Lachman, Wm & Lachman, Eleanor | .1991 |
84
| 'Metamorphosis' | Blue/Green | Large | | | Hybrid | Light-Purple | July to August | Kwick, Charles | .2017 |
85
| 'Miami' | Blue/Green | Large | | | Hybrid | Near-White | June to July | Wade, Van | --NR-- |
86
| 'Michael T. Rozanski' | Blue/Green | Giant | | | Hybrid | Near-White | June to July | Chamberlain, Steve | .2004 |
87
| 'Michelle' | Blue/Green | Large | | | Unknown | Pale-Lavender | July | Bastille, Jocelyne | --NR-- |
88
| 'Microchip' | Blue/Green | Miniature | | | Unknown | Light-Purple | July | Benedict, Dr Ralph (Herb) | --NR-- |
89
| 'Microtardiana' | Blue/Green | Medium | | | Unknown | Med-Lavender | August | Bowden, Roger | --NR-- |
90
| 'Midlife Crisis -Tummy Tuck' | Blue/Green | Small | Medial | Yellow | TC Sport | Pale-Lavender | July to August | Wilson, Glenn | --NR-- |
91
| 'Midnight Blue' | Blue/Green | Unknown | | | Unknown | Unknown | Unknown | Unknown (Listed) | --NR-- |
92
| 'Midnight Dream' | Blue/Green | Giant | | | Unknown | Unknown | Unknown | Hackbarth, Robert | .2015 |
93
| 'Midnight Express' | Blue/Green | Large | | | Hybrid | Pale-Lavender | June to July | Ward, Dr Dick & Ward, Jane | .1996 |
94
| 'Midnight Hour' | Blue/Green | Giant | | | Unknown | Pale-Lavender | June | Ward, Dr Dick & Ward, Jane | .2009 |
95
| 'Midwest Blue' | Blue/Green | Large | | | Sport | Near-White | June to July | Summers, Alex | --NR-- |
96
| 'Mighty Mini' | Blue/Green | Small | Marginal | Yellow | Sport | Light-Purple | June to July | Silvers, Bill | .2013 |
97
| 'Mighty Mouse' | Blue/Green | Small | Marginal | Yellow | Sport | Light-Purple | July | Walters Gardens | .2006 |
98
| 'Mighty Special' | Blue/Green | Small | Streaked | Yellow | TC Sport | Pale-Lavender | June to July | Silvers, Bill | .2013 |
99
| 'Mike' | Blue/Green | Giant | | | Unknown | Unknown | June to July | Webster, B. | .2010 |
100
| 'Mike Shadrack' | Blue/Green | Medium | Marginal | Yellow | Hybrid | Near-White | June to July | Kuk, Bob | .2001 |
101
| 'Mike's Peak' | Blue/Green | Large | | | Hybrid | Unknown | Unknown | Summers, Alex | --NR-- |
102
| 'Miles Standish' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Goodenough, Rick | --NR-- |
103
| 'Milk Road' | Blue/Green | Large | | | Sport | Near-White | June to July | Van den Top, Jan | --NR-- |
104
| 'Millennium' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | June to July | Wilkins, Dr Jim & Wilkins, Jill | .1995 |
105
| 'Millie's Memoirs' | Blue/Green | Large | Marginal | Yellow | Sport | Near-White | June to July | Hansen, Hans | .1999 |
106
| 'Million Dollar Baby' | Blue/Green | Large | Medial | Yellow | Hybrid | Near-White | July to August | Elslager, Ed | .2005 |
107
| 'Mill's Master' | Blue/Green | Small | | | Unknown | Unknown | Unknown | Sneyers, Rob | --NR-- |
108
| 'Mill's Roth-Stone' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Sneyers, Rob | --NR-- |
109
| 'Mill's Stilbon' | Blue/Green | Small | | | Unknown | Unknown | Unknown | Sneyers, Rob | --NR-- |
110
| 'Mimosa Mouse Ears' | Blue/Green | Small | | | Sport | Light-Purple | July | Silvers, Bill | --NR-- |
111
| 'Ming Dynasty' (Hanson) | Blue/Green | Medium | | | Unknown | Unknown | August | Hanson, Curt | --NR-- |
112
| 'Mini Frost' | Blue/Green | Small | Marginal | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
113
| 'Minimoon' | Blue/Green | Miniature | | | Hybrid | Near-White | August | Lachman, Wm & Lachman, Eleanor | .1992 |
114
| 'Minke' | Blue/Green | Giant | Marginal | Yellow | Unknown | Pale-Lavender | July to August | Molter Nurseries | --NR-- |
115
| 'Minke Giant' | Blue/Green | Giant | Marginal | Yellow | Unknown | Med-Lavender | July | Unknown | --NR-- |
116
| 'Minna Blue' | Blue/Green | Medium | | | Unknown | Unknown | August | Ruh, Jean | .1997 |
117
| 'Minnie Klopping' | Blue/Green | Medium | | | Hybrid | Pale-Lavender | July | Arett, Anne & Klopping, Minnie | .1975 |
118
| 'Mint Rushmore' | Blue/Green | Giant | | | Hybrid | Near-White | June to July | Carlson, Monty & Carlson, Julie | .2021 |
119
| 'Mira' | Blue/Green | Giant | | | Sport | Pale-Lavender | June to July | Maekawa, Dr Fumio & The American Hosta Society | .2002 .2018 |
120
| 'Mirror Mirror' | Blue/Green | Small | | | Hybrid | Unknown | Unknown | Goodenough, Rick | --NR-- |
121
| 'Mischief' | Blue/Green | Large | | | Unknown | Near-White | June | Duback, Robyn | .1998 |
122
| 'Miss Abbie' | Blue/Green | Small | | | Hybrid | Light-Purple | August | Schroeder, Bob & Schroeder, Barb | .2019 |
123
| 'Miss AmErica' (Seltz) | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Seltz, Traci | --NR-- |
124
| 'Miss Halley' | Blue/Green | Medium | Medial | Yellow | Sport | Pale-Lavender | July to August | Jones, Leonard | .2003 |
125
| 'Miss Linda Smith' | Blue/Green | Medium | | | Unknown | Light-Purple | July | Wrede, Arthur | .2006 |
126
| 'Miss Lucy' | Blue/Green | Giant | | | Unknown | Near-White | June to July | Simpers, Lucille | --NR-- |
127
| 'Miss You' | Blue/Green | Medium | | | Hybrid | Pale-Lavender | July | Lockwood, Mikky | .2018 |
128
| 'Mississippi Delta' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | June to July | Petryszyn, Olga | .1998 |
129
| 'Mississippi Mist' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Schulz, Ed | .2014 |
130
| 'Mississippi Mud' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | July to August | Simmering, Ron | .2000 |
131
| 'Missouri River' | Blue/Green | Small | | | Hybrid | Near-White | July | Beilstein, Doug & Malloy, Alex | .2005 |
132
| 'Mister Gee' | Blue/Green | Small | Streaked | Speckles | Hybrid | Near-White | July to August | Olson, Maggie | .1995 |
133
| 'Mister Red Genes' | Blue/Green | Large | | | Hybrid | Unknown | Unknown | Wrede, Arthur | --NR-- |
134
| 'Misty' (Schwarz) | Blue/Green | Medium | Marginal | White | Hybrid | Near-White | June | Schwarz, Jim | --NR-- |
135
| 'Misty Waters' | Blue/Green | Large | | | Unknown | Near-White | July to August | Fisher, Eunice V. | .1986 |
136
| 'Mixed Nuts' | Blue/Green | Small | Medial | Yellow | Sport | Pale-Lavender | July to August | Plemmons, Chuck | --NR-- |
137
| 'Moby Dick' | Blue/Green | Large | | | Hybrid | Near-White | July to August | Brill, Kirk | .1999 |
138
| 'Modern Dance' | Blue/Green | Medium | Streaked | White | Hybrid | Med-Lavender | August to September | Van Eechaute, Danny | .2014 |
139
| 'Mohegan' | Blue/Green | Large | | | Unknown | Near-White | June | Megos, Stan & Malloy, Alex | .1998 |
140
| 'Mollie's Blaue' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Ahlburg, Marlene | --NR-- |
141
| 'Molly' | Blue/Green | Large | Marginal | Yellow | Sport | Med-Lavender | July to August | Ruh, Tim & Ruh, Peter & Ruh, Jean | .2005 |
142
| 'Mommy's Little Monster' | Blue/Green | Medium | | | Hybrid | Unknown | Unknown | Stadden, Josh | --NR-- |
143
| 'Mona Lisa' | Blue/Green | Large | | | Unknown | Pale-Lavender | June | Ward, Dr Dick & Ward, Jane | .2005 |
144
| 'Monashee Blue Cup' | Blue/Green | Small | | | Unknown | Unknown | Unknown | Montgomery, John | --NR-- |
145
| 'Monet' (Zilis) | Blue/Green | Small | Medial | Green | TC Sport | Near-White | July to August | Zilis, Mark | .2011 |
146
| 'MonLisa' | Blue/Green | Medium | Marginal | White | Sport | Pale-Lavender | July to August | Alamillo, Andres & Monrovia Nursery Company | --NR-- |
147
| 'Monsieur Parizeau' | Blue/Green | Giant | | | Unknown | Pale-Lavender | Unknown | Bastille, Jocelyne | --NR-- |
148
| 'Monster Babe' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | Unknown | Minks, Eldren & Malloy, Alex | .2000 |
149
| 'Montana Blue' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
150
| 'Montel' | Blue/Green | Large | | | Hybrid | Unknown | Unknown | Livingston, Ron | --NR-- |
151
| 'Montreal Blue Ice Storm' | Blue/Green | Giant | | | Hybrid | Pale-Lavender | June to July | Wade, Van | .2007 |
152
| 'Mood Indigo' | Blue/Green | Large | | | Hybrid | Pure-White | June to July | Ward, Dr Dick & Ward, Jane | .1996 |
153
| 'Moody Blues' | Blue/Green | Medium | | | Unknown | Pale-Lavender | Unknown | Oudolf, Piet & Heemskerk, Gerardus | --NR-- |
154
| 'Moon Is Blue' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Moldovan, Steve | --NR-- |
155
| 'Moon Monster' | Blue/Green | Large | | | Unknown | Unknown | June to July | Lachman, Wm & Lachman, Eleanor & Walek, Kevin & The American Hosta Society | .2009 |
156
| 'Moon River' | Blue/Green | Small | Marginal | White | Unknown | Pale-Lavender | June to July | Lachman, Wm & Lachman, Eleanor | .1991 |
157
| 'Moon Shadow' | Blue/Green | Small | Marginal | Creamy White | Hybrid | Light-Purple | August | Savory, Robert | .1988 |
158
| 'Moon Spilt' | Blue/Green | Medium | Marginal | Yellow | Sport | Pale-Lavender | July to August | Van Eechaute, Danny | --NR-- |
159
| 'Moongate Flying Saucer' | Blue/Green | Small | | | Hybrid | Pale-Lavender | July | Isaacs, Charles & Solberg, Robert | .1996 |
160
| 'Moonlight Sonata' | Blue/Green | Large | | | Hybrid | Pale-Lavender | August | Johnson, Greg | .2004 |
161
| 'Moonlight Sonata Streaked' | Blue/Green | Large | Streaked | White | Sport | Near-White | July to August | Van den Top, Jan | --NR-- |
162
| 'Moonstruck' | Blue/Green | Small | Medial | White | Sport | Pale-Lavender | August | Zumbar, Wm & Walek, Kevin & The American Hosta Society | .2009 |
163
| 'More Elegant' | Blue/Green | Giant | | | Nat-Sport | Near-White | June | Stadden, Josh | .2001 |
164
| 'Moscow Blue' | Blue/Green | Large | | | Hybrid | Near-White | July to August | Arett, Anne & The American Hosta Society | .1986 |
165
| 'Mount Hope' | Blue/Green | Large | Marginal | Yellow | Unknown | Unknown | Unknown | Janet Starnes Nursery | .1992 |
166
| 'Mount Kip' | Blue/Green | Giant | | | Unknown | Light-Purple | July | Simpers, Lucille | --NR-- |
167
| 'Mount Tom' | Blue/Green | Large | Marginal | White | Hybrid | Near-White | July | Lachman, Wm & Lachman, Eleanor | .1995 |
168
| 'Mountain of Love' | Blue/Green | Giant | | | Unknown | Unknown | Unknown | Ziarek, Ken | --NR-- |
169
| 'Mourning Dove' | Blue/Green | Medium | Marginal | Yellow | Hybrid | Pale-Lavender | August | Hansen, Hans & Shady Oaks Nursery | .2005 |
170
| 'Mouse Aquarel' | Blue/Green | Miniature | Marginal | White | Nat-Sport | Light-Purple | July | Van Eechaute, Danny | --NR-- |
171
| 'Mouse Brain' | Blue/Green | Miniature | Streaked | Yellow | Unknown | Unknown | Unknown | Van Eechaute, Danny | --NR-- |
172
| 'Mouse Capades' | Blue/Green | Small | Marginal | White | Sport | Light-Purple | June to July | Mortko, Rob | .2013 |
173
| 'Mouse Madness' | Blue/Green | Miniature | Marginal | White | Sport | Unknown | July to August | Solberg, Robert | .2020 |
174
| 'Mouse Metamorphosis' | Blue/Green | Miniature | | | Nat-Sport | Med-Lavender | July to August | Van Eechaute, Danny | --NR-- |
175
| 'Mouse on the Moon' | Blue/Green | Miniature | Marginal | White | TC Sport | Med-Lavender | Unknown | Zilis, Mark & Solberg, Robert | --NR-- |
176
| 'Mouse Tracks' | Blue/Green | Miniature | Streaked | White | Sport | Light-Purple | June to July | Walters Gardens | .2009 |
177
| 'Mouse Trap' | Blue/Green | Small | Medial | White | Sport | Pale-Lavender | Unknown | Hansen, Hans & Shady Oaks Nursery | --NR-- |
178
| 'Mouseketeer' | Blue/Green | Small | Medial | Yellow | Hybrid | Unknown | Unknown | Hansen, Hans 1950 1960 | .2021 |
179
| 'Movin on Up' | Blue/Green | Small | | | Unknown | Med-Lavender | Unknown | Van Wyke, Trudy | --NR-- |
180
| 'Mr Blue' | Blue/Green | Medium | | | Hybrid | Unknown | July to August | Wrede, Arthur | .2005 |
181
| 'Mr Red Genes' | Blue/Green | Medium | | | Hybrid | Unknown | Unknown | Wrede, Arthur | --NR-- |
182
| 'Mr Z' | Blue/Green | Medium | | | Hybrid | Near-White | August to September to October | Zilis, Mark & Schwarz, Jim & Schwarz, Karen | .2014 |
183
| 'Mr. Black' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Wrede, Arthur | --NR-- |
184
| 'Mr. Ed' | Blue/Green | Large | | | Unknown | Unknown | Unknown | Elslager, Ed | --NR-- |
185
| 'Mr. Spock' | Blue/Green | Large | Marginal | Yellow | Sport | Near-White | June to July | Brill, Kirk | --NR-- |
186
| 'Mrs Gowen' | Blue/Green | Small | Streaked | Yellow | Unknown | Unknown | Unknown | Benedict, Dr Ralph (Herb) | --NR-- |
187
| 'Mrs Mouse Ears' | Blue/Green | Unknown | | | Sport | Light-Purple | July | Unknown | --NR-- |
188
| 'Mrs. Allen' | Blue/Green | Large | | | Sport | Near-White | June to July | Unknown | --NR-- |
189
| 'Mrs. Cleaver' | Blue/Green | Large | Medial | Green | Unknown | Unknown | Unknown | Hicks, Gerry | --NR-- |
190
| 'Mrs. Toshie' | Blue/Green | Large | Streaked | Yellow | Hybrid | Unknown | Unknown | Shimizu, Toshirou | --NR-- |
191
| 'Murasaki Tokudama' | Blue/Green | Unknown | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
192
| 'Muriel Seaver Brown' | Blue/Green | Large | | | Hybrid | Pale-Lavender | June to July | Seaver, Mildred | .1984 |
193
| 'Murmurs' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Minks, Eldren & Malloy, Alex | .2000 |
194
| 'Mutated Ghost' | Blue/Green | Small | Streaked | Yellow | Unknown | Unknown | Unknown | Van Eechaute, Danny | --NR-- |
195
| 'Mutley's Rest' | Blue/Green | Large | Medial | Yellow | Sport | Near-White | June to July | Orlando, John | .2001 |
196
| 'My Blue Heaven' | Blue/Green | Medium | | | Unknown | Light-Purple | July | Banyai, Pauline & Elslager, Ed | .1997 |
197
| 'My Desire' | Blue/Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
198
| 'My Fair Lady' | Blue/Green | Medium | Marginal | Yellow | Hybrid | Near-White | June to July | Hansen, Hans | .2021 |
199
| 'My Friend Bertha' | Blue/Green | Small | | | Sport | Light-Purple | July | Walters Gardens | --NR-- |
200
| 'My Heart' | Blue/Green | Medium | | | Unknown | Light-Purple | July | Wade, Van | .2007 |
201
| 'My Heartbreaking Romance' | Blue/Green | Large | Marginal | Light Blue-Green | Unknown | Unknown | Unknown | Stadden, Josh | --NR-- |
202
| 'My Heroes' | Blue/Green | Medium | Medial | White | Sport | Near-White | June | Chopko, Dave | --NR-- |
203
| 'My Julie' | Blue/Green | Medium | Marginal | Yellow | Unknown | Unknown | Unknown | Schwarz, Jim | .2009 |
204
| 'My Lucky Star' | Blue/Green | Medium | Marginal | White | Sport | Med-Lavender | July to August | Heemskerk, Gerardus | .2012 |
205
| 'Myerscough Magic' | Blue/Green | Large | Medial | White | Sport | Near-White | June to July | Bowden, Roger | --NR-- |
206
| 'Myles Standish' | Blue/Green | Unknown | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
207
| 'Mystery Mom' | Blue/Green | Large | Streaked | Speckles | Unknown | Unknown | July to August | Elslager, Ed | .2005 |
208
| 'Mystic Mouse' | Blue/Green | Miniature | Marginal | Blue-Green | Sport | Light-Purple | July | Van Eechaute, Danny | .2010 |
209
| 'Mystic River' | Blue/Green | Small | Streaked | Yellow | Unknown | Unknown | Unknown | Goodenough, Rick | --NR-- |
210
| 'Mystic Seaport' | Blue/Green | Medium | | | Unknown | Unknown | Unknown | Goodenough, Rick | --NR-- |
211
| 'Mystic Star' | Blue/Green | Small | | | Hybrid | Pale-Lavender | July to August | Johnson, Greg | .2004 |
|