Iberis sempervirens  'Purity'

Iberis sempervirens 'Alexander's White'

Iberis sempervirens 'Snowflake'

Iris chrysographes

Iris cristata

Iris cristata 'Alba'

Iris cristata 'Eco Bluebird'

Iris ensata 'Eden's Blue Pearl'

Iris ensata 'Eden's Charm'

Iris ensata 'Geisha Girl'

Iris ensata 'Gracieuse'

Iris ensata 'Momogazumi'

Iris ensata 'Mount Fujyama'

Iris louisiana 'Anne Chowning'

Iris louisiana 'Black Gamecock'

Iris pseudacorus

Iris sibirica 'Blue Burgee'

Iris sibirica 'Butter & Sugar'

Iris sibirica 'Caesar's Brother'

Iris sibirica 'Coronation Anthem'

Iris sibirica 'Gull's Wing'

Iris sibirica 'Harpswell Happiness'

Iris sibirica 'Illini Peace'

Iris sibirica 'Moonsprite'

Iris sibirica 'Ottawa'

Iris sibirica 'Silver Edge'

Iris sibirica 'Sparkling Rose'

Iris sibirica 'Stellar Blue'

Iris sibirica 'Summer Skies'

Iris sibirica 'Tropic Night'

Iris versicolor

Jeffersonia diphylla

Kalimeris incisa 'Variegata'

Kirengeshoma koreana

Kirengeshoma palmata

Lamiastrum g. Silver Spangled'

Lamiastrum galeobdolon 'Variegata'

Lamium maculatum 'Beacon Silver'

Lamium maculatum 'Beedham's White'

Lamium maculatum 'Pink Pewter'

Lamium maculatum 'Purple Dragon'

Lamium maculatum 'White Nancy'

Leptinella 'Platt's Black'

Leucanthemum maximum 'Becky'

Leucanthemum maximum 'Snow Lady'

Leucanthemum maximum 'Snowcap'

Leucanthemum maximum 'Switzerland'

Leucanthemum maximum 'Thomas Killen'

Liatris pychnostachys

Liatris spicata 'Floristan Violet'

Liatris spicata 'Floristan White'

Liatris spicata 'Kobold'

Ligularia dentata 'Britt-Marie Crawford'

Ligularia dentata 'Othello'

Ligularia 'Hessei'

Ligularia przewalskii

Ligularia stenocephala 'Little Rocket'

Ligularia stenocephala 'The Rocket'

Lilium ass'd

Limonium latifolium

Linnaea borealis

Lobelia siphilitica (Blue Select)

Lupinus 'Russell Hybrids'

Lupinus 'The Governor'

Lychnis coronaria

Lysimachia clethroides

Lysimachia nummularia 'Aurea'

Lysimachia punctata

Lysimachia punctata 'Alexander'