Mosquito Grass, Blue Grama Grass
Mother-of-Thyme, Creeping Thyme
Mount Atlas Daisy
Mountain Flax
Mountain Violet Bearded Iris
Mrs. B. G. Bonner Daylily
Mugho Pine
Mullein Pink, Rose Campion
Munstead Compact English Lavender
Murphy's Agave
Muskogee Lavender Crape Myrtle
Myer's Asparagus
Naked Lady, Belladonna Lily
Nandina, Heavenly Bamboo
Natchez White Crape Myrtle
Needlepoint English Ivy
Netted Chain Fern, or Narrow-Leaved
New Gold Trailing Lantana
New Zealand Flax