'Lenape' Garden Canna 'Lennei Alba' Saucer Magnolia: soulangianahybrid
'Lennei' Saucer Magnolia: soulangianahybrid 'Lenny' Rose of Sharon
Lent Lily Lenten Rose (spp.)
Lenten Rose 'Winter Joy Bouquet' Lenten Tree
'Leonard Messel' Loebner Magnolia 'Leonard Messel' Magnolia
'Leonard Russell' Star Magnolia 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' Leptodermis
Leschenaultia, Blue Lespedeza, Chinese
Lesser Calamint 'White Cloud' Lesser Candelabra Tree
Lesser Celandine 'Brazen Hussy' Lesser Knotweed
Lesser Spearwort 'Let's Dance® Starlight' Bigleaf Hydrangea
'Let's Dance® Big Easy®' Bigleaf Hydrangea 'Let's Dance® Diva!' Bigleaf Hydrangea
'Let's Dance® Moonlight' Bigleaf Hydrangea 'Let's Dance® Rhapsody Blue' Bigleaf Hydrangea
Leucadendron Leucaena, Littleleaf
'Leucocarpa' Japanese Beautyberry Leucospermum
Leucothoe, Coastal Leucothoe, Drooping (spp.)
Leucothoe, Drooping 'Girard's Rainbow' Leucothoe, Drooping 'Rainbow'
Leucothoe, Florida Levant Cotton 'Nigra'
Levantine Live Oak 'Lewelyn & Pansy Purple' Siberian Iris
Lewis Flax 'Lewis Palmer' Bethlehem Sage
Lewisia (spp.) Lewisia 'Ashwood Strain'
Lewisia 'Hybrid Mix' 'Lewisii' Canadian Hemlock
Leyland Cypress (spp.) Leyland Cypress 'Golconda'
Leyland Cypress 'Haggerston Gray' 'Lianne' Florist's Violet
Libertia Libertia, Showy
'Liberty' American Elm 'Liberty' London Planetree
Licorice Mint Licorice Plant (spp.)
Licorice Plant 'Limelight' Licorice Plant 'Schweffellight'
Licorice Plant Variegated Licuri Palm
'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 Lightwood Wattle
Lignum Vitae Lignum Vitae: officinale
Lignum Vitae: sanctum Ligularia, Narrow-Spiked 'The Rocket'
Ligustrum, Japanese (spp.) Ligustrum, Japanese 'Curly Leaf'
Ligustrum, Tree (spp.) Ligustrum, Tree 'Excelsum Superbun'
Ligustrum, Tree 'Tricolor' Ligustrum, Waxleaf (spp.)
Ligustrum, Waxleaf 'Curly Leaf' 'Likelight' Deodar Cedar
'Lil' Kim™' Rose of Sharon 'Lil Miss Sunshine™' Blue Mist Spirea