Lily, Autumn Zephyr Lily, Common Torch (spp.)
Lily, Common Torch 'Flava' Lily, Common Torch 'Lola'
Lily, Common Torch 'Primrose Beauty' Lily, Fortnight
Lily, Peruvian Swamp Lily, Torch (spp.)
Lily, Torch 'Flava' Lily, Torch 'Lola'
Lily, Torch 'Primrose Beauty' Lily: candida, Rain
Lily: gloriosa, Palm Variegated Lily: Kniphofia , Common Torch 'Alcazar'
Lily: Kniphofia , Common Torch 'Gilt Bronze' Lily: Kniphofia , Common Torch 'Parmentier'
Lilyturf 'Big Blue' Lilyturf 'Ever Green Giant'
Lilyturf 'John Burch' Lilyturf 'Riegel's Big Blue'
Lilyturf Variegated Lilyturf, Blue 'Big Blue'
Lilyturf, Blue 'Ever Green Giant' Lilyturf, Blue 'John Burch'
Lilyturf, Blue 'Riegel's Big Blue' Lilyturf, Blue Variegated
Lime, Small-leaved 'Chancellor' Lime, Small-leaved 'Crimean'
Lime, Small-leaved 'Glenleven' Lime, Small-leaved 'Greenspire'
Lime, Small-leaved 'June Bride' Lime, Small-leaved 'Olympic'
Lime, Small-leaved 'Rancho' Lime, Small-leaved 'Truesi'
'Limelight' Licorice Plant Linden, Littleleaf 'Chancellor'
Linden, Littleleaf 'Crimean' Linden, Littleleaf 'Glenleven'
Linden, Littleleaf 'Greenspire' Linden, Littleleaf 'June Bride'
Linden, Littleleaf 'Olympic' Linden, Littleleaf 'Rancho'
Linden, Littleleaf 'Truesi' Lint (spp.)
Lion's Ear: leonurus Lion's Tail Agave (spp.)
Lion's Tail Agave 'Nova' Lion's Tail: leonurus
Liriope 'Big Blue' Liriope 'Ever Green Giant'
Liriope 'John Burch' Liriope 'Riegel's Big Blue'
Liriope Variegated Liriope, Bigblue 'Big Blue'
Liriope, Bigblue 'Ever Green Giant' Liriope, Bigblue 'John Burch'
Liriope, Bigblue 'Riegel's Big Blue' Liriope, Bigblue Variegated
Lithodora, Acid Soil (spp.) Lithodora, Acid Soil 'Heavenly Blue'
Lithodora, Acid Soil 'Picos' 'Little Dot' Maiden Grass
Littleleaf Linden 'Chancellor' Littleleaf Linden 'Crimean'
Littleleaf Linden 'Glenleven' Littleleaf Linden 'Greenspire'
Littleleaf Linden 'June Bride' Littleleaf Linden 'Olympic'
Littleleaf Linden 'Rancho' Littleleaf Linden 'Truesi'
Live Forever: farinosa Live Oak: chrysolepis
Lobelia, Sierra Madre Locust 'Idahoensis'
Locust, Thornless Honey 'Halka' Locust, Thornless Honey 'Imperial'
Locust, Thornless Honey 'Moraine' Locust, Thornless Honey 'Shademaster'
Locust, Thornless Honey 'Skyline' Locust, Thornless Honey 'Sunburst'
Locust, Thornless Honey 'True Shade' 'Lola' Red Hot Poker
Long Leaf Ephedra Long Leaved Wattle
Long-leaved Indian Pine Loquat, Bronze
Loquat, Japanese Louisiana Sage (spp.)
Luckynut 'Luscious® Citrus Blend' Lantana
Madrone, Pacific 'Magic Carpet' Wild Thyme
Mahonia, Creeping Mahonia, Nevin's