Milk Purslane Milkweed, Butterfly (spp.)
Milkweed, Butterfly 'Gay Butterflies' Milkweed, Butterfly 'Hello Yellow'
Milkweed, Common Milkweed, Desert
Milkweed, Green Flowered Milkweed, Marsh (spp.)
Milkweed, Marsh 'Ice Ballet' Milkweed, Rush
Milkweed, Spider Milkweed, Swamp (spp.)
Milkweed, Swamp 'Ice Ballet' Milkweed, Trailing
'Millenaire Live Oak™' Southern Live Oak 'Miller City' Possum Haw Holly
'Mills' Monterey Manzanita 'Millstream Daphne' Moss Phlox
Mimosa, Velvet Pod Mimosa: grahamii
Mimulus, Bigelow Mina Vine (spp.)
Mina Vine 'Citronella' Mini Horsetail
'Minima' American Arborvitae 'Minima Aurea' Lawson's Cypress
'Minima' Colorado Red Cedar 'Minima' Eastern White Pine
Mint Bush Mint, Anise 'Golden Jubilee'
Mint, Hummingbird 'Golden Jubilee' Mint, Korean 'Golden Jubilee'
Mint, Lemon 'Minuet' Mountain Laurel
'Minuta' American Arborvitae Miraguama Palm
'Miss Chloe®' Southern Magnolia 'Miss Elie' Summer Phlox
'Miss Manners' Obedient Plant Mission Manzanita
Missouri Black-eyed Susan Missouri Coneflower
Missouri Currant Missouri Evening Primrose (spp.)
Missouri Evening Primrose 'Silver Wings' Missouri Violet
Mist Flower Mist Flower, Blue
Mitrewort, False (spp.) Moccasin Flower
Moccasin Flower, Yellow Mock Mesquite
Mockernut Hickory Mockorange
Modesto Ash Modoc Cypress
'Moerheimii' Colorado Spruce Mojave Yucca
Molded Wax Agave 'Red Edge' Mole Plant (spp.)
Mole Plant 'Yokoi's White' 'Monarch of Illinois' Bald Cypress
Monardella Monastery Bells (spp.)
Moneywort: nummularia Golden Monkey Faced Pansy
Monkey Flower, Allegheny Monkey Flower, Common
Monkey Flower, Scarlet Monkey Flower, Sea Spring
Monkeyflower, Seep Monk's Hood, Blue
Monk's Hood: myriostigma Monk's Hood: uncinatum
'Mont Blanc' Cupflower 'Monterey Carpet' Monterey Manzanita
Monterey Ceanothus 'Snowball' Monterey Cypress (spp.)
Monterey Cypress 'Gold Pillar' Monterey Cypress 'Keown'
Monterey Cypress 'Lutea' Monterey Manzanita 'Buxifolia'
Monterey Manzanita 'Mills' Monterey Manzanita 'Monterey Carpet'
Monterey Manzanita: hookeri hookeri Monterey Pine
Monterrey Oak Montezuma Bald Cypress
'Montgomery' Colorado Spruce 'Monticola' Ohio Buckeye
'Montrose' Blue Phlox 'Moonbeam' Threadleaf Coreopsis
Moonflower 'Moonglow' Colorado Red Cedar
'Moonglow' Laurel Magnolia 'Moonlight' Autumn Sage
'Moonlight' Colorado Red Cedar Moosewood
'Moraine' Thornless Honey Locust Moran's Agave