'Lawsoniana' Holly: altaclarensishybrid Lawson's Cypress (spp.)
Lawson's Cypress 'Aurea Densa' Lawson's Cypress 'Columnaris'
Lawson's Cypress 'Erecta' Lawson's Cypress 'Fletcheri'
Lawson's Cypress 'Globosa Nana' Lawson's Cypress Golden
Lawson's Cypress Golden Lawson's Cypress 'Green Pillar'
Lawson's Cypress 'Intertexta' Lawson's Cypress 'Lane'
Lawson's Cypress 'Lane's Aurea' Lawson's Cypress 'Minima Aurea'
Lawson's Cypress 'Pembury Blue' Lawson's Cypress 'Pottenii'
Lawson's Cypress 'Triomf van Boskoop' Lawson's Cypress 'Wisselii'
Lawson's Cypress 'Yvonne' 'Laxa' Common Juniper
'Le Bois Marquis (Handsome Devil™' Viburnum 'Le Jour' Common Garden Peony
'Leach's Compact' Doublefile Viburnum: plicatum Lead Plant
Leadtree Leadtree, Goldenball
Leadtree, Littleleaf Leadwood
Leadwort Leadwort, Cape (spp.)
Leadwort, Cape 'Imperial Blue' Leadwort, Cape 'Royal Cape'
Leadwort, Cape White Leadwort, Chinese (spp.)
Leaf Cactus Leaf Mustard 'Osaka Purple'
Leaf Mustard 'Red Giant' Leafy Arnica
'Leah' Allamanda Least Bulrush
Leather Fern Leather Flower 'Duchess of Albany'
Leather Leaf Acacia Leather Oak
Leather Wood Fern Leatherleaf Fern
Leatherleaf Mahonia Leatherleaf Sedge
Leatherleaf Viburnum Leatherwood
Lebombo Cycad Lechuguilla Verde
'Leda' Rose Leek, Lady's
Leek, Lily (spp.) Leek, Pink Lily
Leek, Round Headed Leek, Wild
'Legacy' Sugar Maple 'Legend' Magnolia
'Legend' Rose Leichhardt Tree
'Leilani Blue' Garden Ageratum 'Lembterg' Feather Reed Grass
Lemmons Marigold Lemoine Mock Orange (spp.)
Lemoine Mock Orange 'Innocence' Lemoine Mock Orange 'Manteau d' Hermine'
'Lemon Lime' Hosta 'Lemon Aura' Common Sunflower
Lemon Balm (spp.) Lemon Balm 'All Gold'
Lemon Balm Golden 'Lemon Beauty' Ginger Lily
Lemon Bottlebrush (spp.) Lemon Bottlebrush 'Anzac'
Lemon Bottlebrush 'Hannah Ray' Lemon Bottlebrush 'Splendens'
Lemon Bottlebrush: pallidus Lemon Dalea
'Lemon Gem' Signet Marigold Lemon Geranium
Lemon Grass Lemon Guava
Lemon Leaf Geranium 'Lemon Lime' Dracaena: deremensis
'Lemon Lyric' Tall Bearded German Iris 'Lemon Meringue' Gladiolus
Lemon Mint 'Lemon Mist' Rhododendron: hybrid
'Lemon Princess' Japanese Spirea 'Lemon Queen' Common Sunflower
'Lemon Queen' Cotton Lavender Lemon Scented Eucalyptus
Lemon Scented Gum Lemon (spp.)
'Lemon Spice' Rose 'Lemon Splash' Japanese Burnet
'Lemon Swirl' Lantana '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 Wave' Bigleaf Hydrangea
Lemon 'Eureka' Lemon, Ground
Lemonade Berry Lemon-flowered Gum
Lemon-scented Tea Tree (spp.) Lemon-scented Tea Tree 'White Swan'
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' 'Lemony Lace™' European Red Elderberry