Mother Fern
Mother-of-Thyme, Creeping Thyme
Mountain Flax
Mountain Violet Bearded Iris
Mt. Atlas Daisy
Mugho Pine
Munstead Dwarf Lavender
Murphy's Agave
Muskogee Crape Myrtle
Myers Asparagus
Myrtle, True Myrtle
Nandina, Heavenly Bamboo
Natal Plum
Natchez Crape Myrtle
Needle Grass
Netted Chain Fern
New Gold Trailing Lantana
New Mexico Sunflower
New Zealand Christmas Tree, Pohutuk
New Zealand Flax