'Lemon Lime' Hosta 'Lemon Aura' Common Sunflower
Lemon Balm (spp.) Lemon Balm 'All Gold'
Lemon Balm Golden 'Lemon Beauty' Ginger Lily
'Lemon Gem' Signet Marigold Lemon Geranium
Lemon Grass Lemon Leaf Geranium
'Lemon Lyric' Tall Bearded German Iris 'Lemon Meringue' Gladiolus
Lemon Mint 'Lemon Queen' Common Sunflower
'Lemon Queen' Cotton Lavender 'Lemon Splash' Japanese Burnet
'Lemon Symphony' African Daisy: Osteospermum Lemon Thyme (spp.)
Lemon Thyme 'Archer's Gold' Lemon Thyme 'Aureus Variegatus'
Lemon Thyme 'Citrus' Lemon Thyme 'Doone Valley'
Lemon Thyme 'Doretta Klaber' Lemon Thyme Golden
Lemon Thyme 'Lime' Lemon Thyme 'Minus'
'Lemon Twist' Sulphur Cosmos Lemon Verbena
Lemon, Ground Lemon-Scented Thyme (spp.)
Lemon-Scented Thyme 'Archer's Gold' Lemon-Scented Thyme 'Aureus Variegatus'
Lemon-Scented Thyme 'Citrus' Lemon-Scented Thyme 'Doone Valley'
Lemon-Scented Thyme 'Doretta Klaber' Lemon-Scented Thyme Golden
Lemon-Scented Thyme 'Lime' Lemon-Scented Thyme 'Minus'
'Lenape' Garden Canna Lent Lily
Lenten Rose (spp.) Lenten Rose 'Winter Joy Bouquet'
Leopard Flower (spp.) Leopard Flower Dwarf
'Leopard' Hawkweed Leopard Lilies Golden
Leopard Lily Leopard Palm (spp.)
Leopard Plant (spp.) Leopard Plant 'Sungold'
Leopard Plant 'Aureo-maculata' Leopard Plant 'Crispata'
Leopard Plant, Green (spp.) Leopard Plant, Green 'Aureo-maculata'
Leopard Plant, Green 'Crispata' Leopard Plant: dentata (spp.)
Leopard Plant: dentata 'Desdemona' Leopard Plant: dentata 'Othello'
'Leopardess' Waterlily Leopard's Spots
Leopardsbane, Caucasian (spp.) Leopardsbane, Caucasian 'Little Leo'
Leopardsbane, Little Leo (spp.) Leopardsbane, Little Leo 'Little Leo'
Lespedeza, Chinese Lesser Calamint 'White Cloud'
Lesser Celandine 'Brazen Hussy' Lesser Knotweed
Lesser Spearwort Leucospermum
Levant Cotton 'Nigra' 'Lewelyn & Pansy Purple' Siberian Iris
Lewis Flax 'Lewis Palmer' Bethlehem Sage
Lewisia (spp.) Lewisia 'Ashwood Strain'
Lewisia 'Hybrid Mix' 'Lianne' Florist's Violet
Libertia Libertia, Showy
Licorice Mint Licorice Plant (spp.)
Licorice Plant 'Limelight' Licorice Plant 'Schweffellight'
Licorice Plant Variegated 'Lidakense' Showy Stonecrop
Life Plant: pinnata Lifelong Saxifrage
'Light Pink Pearls' Garden Petunia 'Light Pink Twinspur' Diascia
'Lightning Bug' Daylily 'Lightning Strike' Hybrid Toad Lily
Ligularia, Narrow-Spiked 'The Rocket' Lilac Cranesbill 'Gravetye'
Lilac Sage 'Purple Rain' Lilac Vine (spp.)
Lilac Vine 'Happy Wanderer' 'Lilac Wonder' Tulip
Lilies, Leopard Golden 'Lilliput' Lily of the Nile: Agapanthus
Lilly, Kaffir (spp.) Lilly, Kaffir 'Jacqueline'