Marjoram Marjoram, Annual 'Compactum'
Marjoram, Annual 'Sicillian' Marjoram, Hop (spp.)
Marjoram, Hop 'Amargcus Dictamnus' Marjoram, Knotted 'Compactum'
Marjoram, Knotted 'Sicillian' Marjoram, Pot (spp.)
Marjoram, Pot Golden Marjoram, Pot 'Thumbles'
Marjoram, Pot Variegated Marjoram, Sweet 'Compactum'
Marjoram, Sweet 'Sicillian' 'Markham's Pink' Large Petal Clematis
'Marliacea Albida' Waterlily 'Marmalade' Black-eyed Susan
'Mars' Coleus Marsh Afrikaner
Marsh Betony Marsh Blue Violet 'White Czar'
Marsh Grass Marsh Grass: bakeri
Marsh Mallow Marsh Marigold
Marsh Milkweed (spp.) Marsh Milkweed 'Ice Ballet'
Marsh Rosemary Marsh Woundwort
'Marshal's Delight' Bee Balm: didyma Martagon Lily
Martha Washington Geranium 'Aztec' Martha Washington Geranium 'Ballerina'
Martha Washington Geranium 'Delilah' Martha Washington Geranium 'Flair'
Martha Washington Geranium 'Martha Washington' 'Martha Washington' Martha Washington Geranium
Marvel Of Peru (spp.) 'Mary Ann' Chinese Evergreen
'Mary Bea' Cymbidium Orchid 'Mary Dunn' Louisiana Iris
'Mary' Florist's Chrysanthemum 'Mary Frances' Tall Bearded German Iris
'Mary Gregory' Stokes' Aster 'Mary Marie Ann' Hosta
'Mary Todd' Daylily 'Mary's Gold' Daylily
'Masamune' Dwarf Sweet Flag Masterwort, Great
Masterwort, Greater (spp.) Masterwort, Greater 'Shaggy'
Masterwort, Large Mat Rush, Spiny Headed
Maternity Plant Matgrass
Matilija Poppy Matilja Poppy
Matricaria (spp.) Matricaria Golden
'Maurelii' Abyssinian Banana Mauritius Hemp 'Mediopicta'
'Maverick Scarlet' Zonal Geranium Maximillian Daisy
Maximillian Sunflower 'Maxkowskii' African Mask
'Maxkowskii' Elephant's Ear 'May Bouquet' Lungwort: hybrid
'May Colvin' Daylily 'May Night' Meadow Sage
Mayapple Mayflower
'Maytime' Hybrid Tulip Mazus, Creeping (spp.)
Mazus, Creeping White 'McKana's Giant' Columbine
Meadow Cowslip (spp.) Meadow Cranesbill (spp.)
Meadow Cranesbill 'Midnight Reiter' Meadow Cranesbill 'Mrs. Kendall Clark'
Meadow Cranesbill 'Plenum-Caeruleum' Meadow Cranesbill 'Plenum-Violaceum'
Meadow Cranesbill 'Summer Skies' Meadow Fescue (spp.)
Meadow Fescue 'Jaguar 3' Meadow Fescue 'KY31'
Meadow Foam Meadow Foxtail Grass 'Aureovariegatus'
Meadow Foxtail Grass Variegated Meadow Grass
Meadow Grass: colensoi Meadow Lily
Meadow Phlox 'Flower Power' Meadow Phlox 'Natasha'
Meadow Rue (spp.) Meadow Rue, Columbine (spp.)
Meadow Rue, Giant (spp.) Meadow Rue, Giant 'Lavender Mist'
Meadow Rue, Kyushu Meadow Rue, Lavender Mist (spp.)
Meadow Rue, Lavender Mist 'Lavender Mist' Meadow Rue, Yunnan (spp.)
Meadow Saffron (spp.) Meadow Saffron 'Waterlily'
Meadow Saffron: speciosum (spp.) Meadow Saffron: speciosum 'The Giant'
Meadow Sage 'Indigo' Meadow Sage 'Blue Queen'
Meadow Sage 'Caradonna' Meadow Sage 'Marcus'
Meadow Sage 'May Night' Meadow Sage 'Plumosa'
Meadow Sage 'Rosenwein' Meadow Sage: chiapensis
Meadow Sage: holwayii Meadowsweet (spp.)
Meadowsweet, European 'Plena' Meadowsweet, European Variegated
Meadowsweet, Japanese (spp.) Meadowsweet: ulmaria 'Plena'
Meadowsweet: ulmaria Variegated Meadowsweet: vulgaris (spp.)
Meadowsweet: vulgaris 'Flore Pleno'