Glyceria grandis

Glyceria grandis

American Mannagrass, Reed Meadowgrass, Tall Manna Grass

Glyceria striata

Glyceria striata

Fowl Mannagrass

Helenium autumnale

Helenium autumnale

Bitterweed, Common Sneezeweed, Fall Sneezeweed, False Sunflower, Helen's Flower, Large-flowered Sneezeweed, Sneezeweed

Helianthus annuus

Helianthus annuus Autumn Beauty

'Autumn Beauty'

Autumn Beauty Common Sunflower

Helianthus annuus

Helianthus annuus Mongolian Giant

'Mongolian Giant'

Mongolian Giant Sunflower

Helleborus abchasicus

Helleborus abchasicus

Lenten Rose

Helleborus niger

Helleborus niger

Black Hellebore, Christmas Rose

Hemerocallis middendorffii

Hemerocallis middendorffii

Amur Daylily, Chinese Daylilly, Daylily, Middendorf Daylilly

Heracleum sphondylium

Heracleum sphondylium

Cow Parsnip, Hogweed

Hesperis matronalis

Hesperis matronalis

Dames Rocket

Hibiscus cannabinus

Hibiscus cannabinus

Brown Indianhemp, Kenaf

Hibiscus moscheutos

Hibiscus moscheutos

Common Rose Mallow, Crimsoneyed Rosemallow, Marsh Mallow, Swamp Rosemallow

Hibiscus moscheutos

Hibiscus moscheutos var. palustris

var. Palustris

Pink Mallow, Pink Rose Mallow

Hosta ventricosa

Hosta ventricosa

Blue Hosta, Blue Plantain Lily, Hosta

Hosta venusta

Hosta venusta

Plantain Lily

Hydrastis canadensis

Hydrastis canadensis

Golden Seal, Goldenseal

Hylomecon vernalis

Hylomecon vernalis

Forest Poppy

Hypericum perforatum

Hypericum perforatum

Common St. Johnswort

Hyssopus officinalis

Hyssopus officinalis

Herb Hyssop, Hyssop

Inula helenium

Inula helenium

Elecampane, Elecampane Inula

Ipomoea purpurea

Ipomoea purpurea Grandpa Otts

'Grandpa Otts'

Grandpa Otts Morning Glory

Ipomoea tricolor

Ipomoea tricolor Heavenly Blue

'Heavenly Blue'

Heavenly Blue Morning Glory

Iris bloudowii

Iris bloudowii

Yellow Mongolian Iris

Iris crocea

Iris crocea

German Iris, Golden Flag

Iris magnifica

Iris magnifica

Juno Iris

Iris magnifica

Iris magnifica f. caerulea

var. f. caerulea

Blue Juno Iris

Iris pseudacorus

Iris pseudacorus

Pale Yellow Iris, Yellow Flag

Iris sibirica

Iris sibirica

Siberian Iris

Iris versicolor

Iris versicolor

Blue Flag, Harlequin Blueflag, Larger Blueflag, Northern Blue Flag

Juncus effusus

Juncus effusus

Bog Rush, Common Rush, Needle Rush, Needlerush, Soft Rush

Knautia arvensis

Knautia arvensis

Blue Buttons, Field Scabiosa, Field Scabious

Lactuca sativa

Lactuca sativa Salad Bowl

'Salad Bowl'

Salad Bowl Lettuce

Lathyrus odoratus

Lathyrus odoratus

Sweet Pea, Sweetpea

Lathyrus tuberosus

Lathyrus tuberosus

Tuberous Sweetpea

Lavatera cachemiriana

Lavatera cachemiriana

Cashmir Mallow, Kashmir Mallow, Lavatera, Tree Mallow

Lavatera thuringiaca

Lavatera thuringiaca

Gay Mallow, Tree Lavatera, Tree Mallow

Leonotis nepetifolia

Leonotis nepetifolia

Lion's Ear

Leontopodium alpinum

Leontopodium alpinum

Edelweiss

Lepidium meyenii

Lepidium meyenii

Black Maca, Peruvean Ginseng

Leucanthemum superbum

Leucanthemum x superbum

x

Shasta Daisy

Liatris spicata

Liatris spicata 'Kobold'

var. Kobold

Kobold Blazing Star, Kobold Spike Gayfeather

Lilium distichum

Lilium distichum

Manchurian Turk's Cap Lily

Lilium pensylvanicum

Lilium pensylvanicum

Candlestick Lily

Lilium superbum

Lilium superbum

Swamp Lily, Turk's Cap Lily, Turk's-cap Lily

Limonium gmelinii

Limonium gmelinii

Siberian Statice

Limonium sinuatum

Limonium sinuatum

Statice, Wavyleaf Sea Lavender

Linaria maroccana

Linaria maroccana Northern Lights

'Northern Lights'

Northern Lights Snapdragon

Linaria vulgaris

Linaria vulgaris

Butter And Eggs, Common Toadflax, Yellow Toadflax

Linum usitatissimum

Linum usitatissimum

Common Flax, Flax, Linseed

Liriope muscari

Liriope muscari db

Big Blue Lilyturf, Lilyturf