'Louise Mercer' Daylily Louisiana Artemisia (spp.)
Louisiana Iris (spp.) Louisiana Iris 'Bayou Shadow'
Louisiana Iris 'Clyde Redmond' Louisiana Iris 'Elene Rockwell'
Louisiana Iris 'Freddie Boy' Louisiana Iris 'Ira Nelson'
Louisiana Iris 'King Creole' Louisiana Iris 'Mary Dunn'
Louisiana Iris 'Pegaletta' Louisiana Iris 'Popsie'
Louisiana Iris 'Professor Claude' Louisiana Iris 'Rich and Famous'
Louisiana Iris 'Sea Wisp' Louisiana Iris 'Town Council'
Louisiana Iris: prismatica Louisiana Phlox (spp.)
Louisiana Phlox 'Blue Moon' Louisiana Phlox Dwarf
Louisiana Phlox 'Montrose' Louisiana Sage (spp.)
Louisiana Sage 'Silver Queen' Lousewort, Common
Lovage, Garden 'Love Pat' Hosta
Love Restorer Love-in-a Puff
'Loveliness' Bigflower Self Heal 'Loyalist' Hosta
'Luciana' Waterlily 'Lucifer' Montbretia
Lucky Clover 'Lucy Vitols' Hosta
'Luna Moth' Ginger Lily 'Luna Red' Rose Mallow
Lundi Star Lungwort (spp.)
Lungwort 'Lewis Palmer' Lungwort, Blue (spp.)
Lungwort, Cowslip (spp.) Lungwort, Long Leafed 'Bertram Anderson'
Lungwort, Long Leafed 'Cevennensis' Lungwort, Long Leafed 'Diana Clare'
Lungwort, Long Leafed 'Excalibur' Lungwort: hybrid 'Cotton Cool'
Lungwort: hybrid 'Dark Vader' Lungwort: hybrid 'Emerald Isles'
Lungwort: hybrid 'High Contrast' Lungwort: hybrid 'Majesty'
Lungwort: hybrid 'May Bouquet' Lungwort: hybrid 'Opal'
Lungwort: hybrid 'Raspberry Ice' Lungwort: hybrid 'Raspberry Splash'
Lungwort: hybrid 'Silver Streamers' Lungwort: hybrid 'Trevi Fountain'
Lungwort: hybrid 'Victorian Brooch' Lungwort: montana 'David Ward'
Lungwort: officinalis 'Sissinghurst White' Lupine (spp.)
Lupine 'My Castle' Lupine 'Popsicle'
Lupine 'Russell Hybrid' Lupine 'The Governor'
Lupine, Big Leaf (spp.) Lupine, Big Leaf 'My Castle'
Lupine, Big Leaf 'Popsicle' Lupine, Big Leaf 'Russell Hybrid'
Lupine, Big Leaf 'The Governor' Lupine, Carolina
Lupine: fistulosa 'Lutea' Crown Imperial Fritillary
Lychnis 'Jenny' Lychnis 'Nana Peggy'
Lycoris, Autumn Lycoris, Short tube
Lyme Grass 'Manhattan' Lyme Grass (spp.)
Lyme Grass Blue Lyre-Leaf Sage 'Burgundy Bliss'
Lyre-Leaf Sage 'Purple Knockout' Lysimachia 'Ecosatin'
Mace Sedge 'Macintosh' Daylily
Madagascar Periwinkle (spp.) Madagascar Periwinkle 'First Kiss Blueberry'
Madagascar Periwinkle 'Parasol' Madagascar Periwinkle 'Pastels Mix'
Madagascar Periwinkle 'Pretty in Rose' Madagascar Periwinkle 'Raspberry Cooler'
Madagascar Periwinkle 'Rose Carpet' Madagascar Periwinkle 'Stardust Mix'
Madagascar Periwinkle 'Stardust Orchid' Madeira Island Geranium
'Maggie Belle Slocum' Sacred Lotus