Marbleberry 'Marci' Daylily
'Mardi Gras' Annual Coreopsis 'Mardi Gras Parade' Daylily
'Margarita BOP' Foothill Penstemon 'Marginata' Variegated Caribbean Agave
'Marianne' American Holly 'Marina' Rose
'Marina(Blue Satin®)' Rose of Sharon Marjoram
Marlberry: escallonioides Marsh Betony
Marsh Milkweed (spp.) Marsh Milkweed 'Ice Ballet'
Marsh Woundwort 'Marshal's Delight' Bee Balm: didyma
Martha Washington Geranium 'Martha Washington' 'Martha Washington' Martha Washington Geranium
Marvel Of Peru (spp.) 'Mary Cave' Rose
'Mary Frances' Tall Bearded German Iris 'Mary Potter' Flowering Crabapple
'Mary Sumner' Rose 'Mary Todd' Daylily
'Mary's Gold' Daylily 'Massachusetts' Manzanita
'Massena' American Arborvitae Maximillian Daisy
Maximillian Sunflower 'May Colvin' Daylily
May Hawthorn Mayhaw
'McKana's Giant' Columbine Meadow Lily
Meadow Sage: holwayii Meadowsweet: japonica, Japanese 'Double Play® Artisan®'
Meadowsweet: japonica, Japanese 'Double Play® Gold' Mealberry (spp.)
Mealberry 'Massachusetts' Mealberry 'Microphylla'
Mealberry 'Point Reyes' Mealberry 'Radiant'
Mealie (spp.) Mealie 'Indian Summer'
'Medio' American Aloe Meeting Houses (spp.)
Meeting Houses 'Corbett' Memorial Rose: wichuraiana
Mendocino Shore Pine Mescal
Mescal Ceniza Mescal, Pelon
Mescal: parryi conesii Meserve Holly 'Castle Spire®'
'Meteor' Mountain Laurel Mexican Cypress: mucronatum
Mexican Elderberry Mexican Hyssop 'Blue Fortune'
Mexican Hyssop 'Pink Panther' Mexican Hyssop 'Tutti Fruitti'
Mexican Nut Pinyon Mexican Nut Pinyon: cembroides
Mexican Persimmon Mexican Plum
Mexican Sunflower (spp.) Mexican Sunflower 'Aztec Sun'
Mexican Sunflower 'Sundance' Mexican Sunflower 'Yellow Torch'
'Microphylla' Manzanita 'Microphyllus' Japanese Euonymus
'Midnight Claret' Alumroot: Heuchera 'Midnight Wine®' Old Fashioned Weigela
'Mikado' Rose 'Milestone' Rose
Milk Thistle Milkweed, Desert
Milkweed, Marsh (spp.) Milkweed, Marsh 'Ice Ballet'
Milkweed, Rush Milkweed, Swamp (spp.)
Milkweed, Swamp 'Ice Ballet' 'Miller City' Possum Haw Holly
'Mills' Monterey Manzanita 'Mimi (Sunjoy® Mini Salsa)' Japanese Barberry
Mimosa (spp.) Mimosa Tree (spp.)
Mimosa, Golden (spp.) Mimosa, Golden 'Purpurea'
Mina Vine (spp.) Mina Vine 'Citronella'
'Mini Pearl' Daylily 'Minima' American Arborvitae
'Minima' Eastern White Pine 'Ministar' Columbine
'Minrosa (Rose Satin®)' Rose of Sharon