Noms scientifiques : H
- Haberlea rhodopensis
- Hacquetia epipactis
- Haemanthus König Albert
- Haemanthus albiflos
- Haemanthus multiflorus
- Hakea ednieana
- Hakea eriantha
- Hakea laurina
- Hakea sericea
- Hakonechloa macra
- Hakonechloa macra 'Alboaurea'
- Hakonechloa macra 'All Gold'
- Hakonechloa macra 'Aureola'
- Halesia diptera
- Halesia monticola 'Rosea'
- Hamamelis japonica
- Hamamelis japonica 'Arborea'
- Hamamelis japonica 'Flavo-Purpurascens'
- Hamamelis japonica 'Robin'
- Hamamelis japonica 'Zuccariniana'
- Hamamelis mollis
- Hamamelis mollis 'Brevipetala'
- Hamamelis mollis 'Feuerzauber'
- Hamamelis mollis 'Imperialis'
- Hamamelis mollis 'Pallida'
- Hamamelis vernalis
- Hamamelis vernalis 'Amethyst'
- Hamamelis vernalis 'Quasimodo'
- Hamamelis vernalis 'Washington Park'
- Hamamelis virginiana
- Hamamelis x intermedia
- Hamamelis x intermedia 'Advent'
- Hamamelis x intermedia 'Allgold'
- Hamamelis x intermedia 'Amanon'
- Hamamelis x intermedia 'Arnold Promise'
- Hamamelis x intermedia 'Aurora'
- Hamamelis x intermedia 'Barmstedt Gold'
- Hamamelis x intermedia 'Bernstein'
- Hamamelis x intermedia 'Brandes'
- Hamamelis x intermedia 'Carmine Red'
- Hamamelis x intermedia 'Diane'
- Hamamelis x intermedia 'Feuerzauber'
- Hamamelis x intermedia 'Jelena'
- Hamamelis x intermedia 'Orange Beauty'
- Hamamelis x intermedia 'Primavera'
- Hamamelis x intermedia 'Robert'
- Hamamelis x intermedia 'Ruby Glow'
- Hamamelis x intermedia 'Spanish Spider'
- Hamamelis x intermedia 'Sunburst'
- Hamamelis x intermedia 'Westerstede'
- Haplopappus clematis
- Hardenbergia violacea
- Hasteola suaveolens
- Hauya elegans
- Haworthia attenuata
- Hebe Blue Star
- Hebe Emerald Gem
- Hebe Purple Shamrock
- Hebe albicans 'Red Edge'
- Hebe epacridea
- Hebe masoniae
- Hebe odora 'New Zealand Gold'
- Hebe rakaiensis
- Hebe salicifolia
- Hebe speciosa 'Rubra'
- Hebenstretia dentata
- Hedera algeriensis 'Gloire de Marengo'
- Hedera colchica 'Arborescens'
- Hedera colchica 'Dentata Variegata'
- Hedera colchica 'Sulphur Heart'
- Hedera helix
- Hedera helix 'Arborescens'
- Hedera helix 'Arbori Compact'
- Hedera helix 'Arbori Gloss'
- Hedera helix 'Conglomerata Erecta'
- Hedera helix 'Deltoidea'
- Hedera helix 'Erecta'
- Hedera helix 'Glacier'
- Hedera helix 'Goldchild'
- Hedera helix 'Goldheart'
- Hedera helix 'Hibernica'
- Hedera helix 'Ice Cream'
- Hedera helix 'Zorgvlied'
- Hedera hibernica 'Arbori Compact'
- Hedychium densiflorum
- Hedychium densiflorum 'Assam Orange'
- Hedychium densiflorum 'Stephen'
- Hedychium gardnerianum
- Hedychium horsfieldii
- Hedysarum boreale
- Hedysarum hedysaroides
- Helenium Baudirektor Linne
- Helenium Biedermeier
- Helenium Dunkle Pracht
- Helenium Feuersiegel
- Helenium Feuerzauber
- Helenium Flammenrad
- Helenium Goldlackzwerg
- Helenium Goldrausch
- Helenium Julisamt
- Helenium Kanaria
- Helenium Kleiner Fuchs
- Helenium Kupfersprudel
- Helenium Kupferzwerg
- Helenium Königstiger
- Helenium Mahagoni
- Helenium Moerheim Beauty
- Helenium Rauchtopas
- Helenium Rotkäppchen
- Helenium Rubinkuppel
- Helenium Rubinzwerg
- Helenium Ruby Tuesday
- Helenium Salsa
- Helenium Septemberfuchs
- Helenium Waldhorn
- Helenium Waltraut
- Helenium Wesergold
- Helenium Wonadonga
- Helenium Zimbelstern
- Helenium amarum
- Helenium aromaticum
- Helenium autumnale
- Helenium flexuosum
- Helianthemum Ben Alder
- Helianthemum Eisbär
- Helianthemum Elfenbeinglanz
- Helianthemum Lawrenson's Pink
- Helianthemum nummularium
- Helianthus annuus
- Helianthus annuus 'Abendsonne'
- Helianthus annuus 'Choco Sun'
- Helianthus annuus 'Niedrige Sonnengold'
- Helianthus annuus 'Prado Gold'
- Helianthus annuus 'Prado Red'
- Helianthus annuus 'Teddybär'
- Helianthus decapetalus 'Soleil d'Or'
- Helianthus giganteus
- Helianthus microcephalus 'Lemon Queen'
- Helianthus mollis
- Helianthus pauciflorus
- Helianthus salicifolius
- Helianthus tuberosus
- Helianthus x multiflorus 'Meteor'
- Helichrysum arenarium
- Helichrysum bracteatum
- Helichrysum bracteatum 'Sunbrella Red'
- Helichrysum bracteatum 'Sundaze Flame'
- Helichrysum italicum
- Helichrysum petiolare
- Helichrysum retordoides
- Helichrysum splendidum
- Helichrysum thianschanicum 'Schwefellicht'
- Heliconia chartacea 'Sexy Pink'
- Heliconia latispatha 'Red-Yellow Gyro'
- Heliconia marginata x psittacorum 'Nickeriensis'
- Heliconia psittacorum x spathocircinata 'Golden Torch'
- Helictotrichon sempervirens 'Saphirsprudel'
- Heliomeris multiflora
- Heliopsis helianthoides
- Heliopsis helianthoides var. scabra
- Heliopsis helianthoides var. scabra 'Asahi'
- Heliopsis helianthoides var. scabra 'Goldgefieder'
- Heliopsis helianthoides var. scabra 'Goldgrünherz'
- Heliopsis helianthoides var. scabra 'Hohlspiegel'
- Heliopsis helianthoides var. scabra 'Sonnenschild'
- Heliopsis helianthoides var. scabra 'Sunstruck'
- Heliopsis helianthoides var. scabra 'Venus'
- Heliopsis helianthoides var. scabra 'Wüstenkönig'
- Heliotropium amplexicaule
- Heliotropium arborescens
- Heliotropium arborescens 'Nautilus Lavender'
- Heliotropium europaeum
- Heliotropium ramosissimum
- Helleborus argutifolius
- Helleborus atrorubens
- Helleborus caucasicus
- Helleborus dumetorum subsp. atrorubens
- Helleborus foetidus
- Helleborus lividus
- Helleborus niger
- Helleborus odorus
- Helleborus orientalis
- Helleborus orientalis 'Gelbe Auslese'
- Helleborus orientalis 'Queen of the Night'
- Helleborus purpurascens
- Helleborus viridis
- Helleborus x ericsmithii 'HGC Pink Frost'
- Helleborus x hybridus 'Harvington Yellow with Maroon Eye'
- Helleborus x sternii
- Helmholtzia glaberrima
- Helonias bullata
- Hemerocallis Alan
- Hemerocallis Arriba
- Hemerocallis Atlas
- Hemerocallis Autumnale Red
- Hemerocallis Bed of Roses
- Hemerocallis Berlin Red Velvet
- Hemerocallis Bess Ross
- Hemerocallis Black Cherry
- Hemerocallis Black Jewel
- Hemerocallis Black Magic
- Hemerocallis Bonanza
- Hemerocallis Caballero
- Hemerocallis Congo Beauty
- Hemerocallis Crimson Pirate
- Hemerocallis Dark and Early
- Hemerocallis Early Glow
- Hemerocallis Ed Murray
- Hemerocallis Eveline Claar
- Hemerocallis Frans Hals
- Hemerocallis Golden Hours
- Hemerocallis Hyperion
- Hemerocallis Jean
- Hemerocallis Lavender Flight
- Hemerocallis Lexington
- Hemerocallis Mabel Fuller
- Hemerocallis Pink Damask
- Hemerocallis Prophet
- Hemerocallis Raja
- Hemerocallis Rascal
- Hemerocallis Red Star
- Hemerocallis Red and Early
- Hemerocallis Redwood
- Hemerocallis Regal Air
- Hemerocallis Resplendent
- Hemerocallis Sammy Russell
- Hemerocallis Shining Plumage
- Hemerocallis So Lovely
- Hemerocallis Spectacular
- Hemerocallis Stern von Rio
- Hemerocallis Summer Interlude
- Hemerocallis Winsome Lady
- Hemerocallis aurantiaca 'Major'
- Hemerocallis citrina
- Hemerocallis dumortieri
- Hemerocallis esculenta
- Hemerocallis fulva
- Hemigraphis alternata
- Hemigraphis repanda
- Hepatica nobilis
- Hepatica nobilis 'Alba'
- Hepatica nobilis var. acuta
- Hepatica transsylvanica
- Heptacodium miconioides
- Heptacodium miconioides 'Temple of Bloom'
- Heracleum antasiaticum
- Heracleum lanatum
- Heracleum mantegazzianum
- Hesperis matronalis
- Heterocentron elegans
- Heteromeles arbutifolia
- Heuchera Georgia Peach
- Heuchera Mars
- Heuchera Seasons King
- Heuchera Southern Comfort
- Heuchera americana
- Heuchera americana 'Dale'
- Heuchera micrantha 'Molly Bush'
- Heuchera micrantha 'Palace Purple'
- Heuchera micrantha 'Peach Flambe'
- Heuchera micrantha 'Regina'
- Heuchera sanguinea
- Heuchera sanguinea 'Leuchtkäfer'
- Heuchera villosa 'Caramel'
- Heuchera villosa 'Chantilly'
- Heuchera villosa 'Frosted Violet'
- Heuchera villosa 'Marmelade'
- Heucherella Stoplight
- Hibbertia cuneifolia
- Hibbertia scandens
- Hibiscus Resi
- Hibiscus acetosella
- Hibiscus boryanus
- Hibiscus cannabinus
- Hibiscus clayi
- Hibiscus grandidieri var.greveanus
- Hibiscus kokio subsp. saintjohnianus
- Hibiscus lavaterioides
- Hibiscus moscheutos
- Hibiscus moscheutos 'Chatelaine'
- Hibiscus moscheutos 'Luna Blush'
- Hibiscus moscheutos 'Luna Pink Swirl'
- Hibiscus moscheutos 'Luna Red'
- Hibiscus moscheutos 'Splash Pinot Grigio'
- Hibiscus moscheutos 'Summerific Midnight Marvel'
- Hibiscus rosa-sinensis
- Hibiscus rosa-sinensis 'Ischia'
- Hibiscus rosa-sinensis 'Tahitian Gabonaise'
- Hibiscus sabdariffa
- Hibiscus schizopetalus
- Hibiscus syriacus
- Hibiscus syriacus 'Azurri'
- Hibiscus syriacus 'Blue Bird'
- Hibiscus syriacus 'Blue Chiffon'
- Hibiscus syriacus 'China Chiffon'
- Hibiscus syriacus 'Duc de Brabant'
- Hibiscus syriacus 'Eruption'
- Hibiscus syriacus 'Freedom'
- Hibiscus syriacus 'French Cabaret Pastel'
- Hibiscus syriacus 'French Cabaret Red'
- Hibiscus syriacus 'Hamabo'
- Hibiscus syriacus 'Kakapo'
- Hibiscus syriacus 'Lady Stanley'
- Hibiscus syriacus 'Lavander Chiffon'
- Hibiscus syriacus 'Leopoldii'
- Hibiscus syriacus 'Marina'
- Hibiscus syriacus 'Mathilde'
- Hibiscus syriacus 'Meehanii'
- Hibiscus syriacus 'Melrose'
- Hibiscus syriacus 'Mingravi4'
- Hibiscus syriacus 'Minpast'
- Hibiscus syriacus 'Oiseau Bleu'
- Hibiscus syriacus 'Pink Chiffon'
- Hibiscus syriacus 'Puniceus Plenus'
- Hibiscus syriacus 'Purple Ruffles'
- Hibiscus syriacus 'Red Heart'
- Hibiscus syriacus 'Silke'
- Hibiscus syriacus 'Speciosus'
- Hibiscus syriacus 'Starry Starry Night''
- Hibiscus syriacus 'Sub Heart'
- Hibiscus syriacus 'Ultramarine'
- Hibiscus syriacus 'Waltraud'
- Hibiscus syriacus 'White Chiffon'
- Hibiscus tiliaceus
- Hibiscus trionum
- Hieracium aurantiacum
- Hieracium caespitosum
- Hieracium umbellatum
- Hilleria latifolia
- Himantoglossum hircinum
- Hippeastrum reticulatum var. striatifolium
- Hippocrepis balearica
- Hippocrepis emerus
- Hippophae rhamnoides
- Hippophae rhamnoides 'Hergo'
- Hippophae rhamnoides 'Hikul'
- Hippophae rhamnoides 'Leikora'
- Hippophae rhamnoides 'Orange Energy'
- Hippophae rhamnoides 'Pollmix 1'
- Hippophae rhamnoides 'Pollmix 2'
- Hippophae rhamnoides 'Pollmix 5'
- Hippophae rhamnoides 'Pollmix'
- Hippophae rhamnoides 'Sandora'
- Hippophae rhamnoides subsp. turkestanica
- Hippuris vulgaris
- Holmskioldia sanguinea
- Holodiscus discolor var. ariifolius
- Honckenya peploides
- Hordeum jubatum
- Hordeum vulgare
- Hordeum vulgare f. hexastichon
- Hormatophylla spinosa
- Hosta August Moon
- Hosta Blue Cadet
- Hosta Bressingham Blue
- Hosta First Frost
- Hosta First Mate
- Hosta Fringe Benefit
- Hosta Gold Standard
- Hosta Halcyon
- Hosta June
- Hosta Morning Light
- Hosta Pascal
- Hosta Patriot
- Hosta Paul's Glory
- Hosta Rainbow's End
- Hosta Stiletto
- Hosta Sum and Substance
- Hosta Touch of Class
- Hosta Whirlwind
- Hosta Wide Brim
- Hosta crispula
- Hosta elata
- Hosta fortunei 'Aureomarginata'
- Hosta fortunei 'Francee'
- Hosta fortunei 'Hyacinthina'
- Hosta gracillima
- Hosta lancifolia
- Hosta montana 'Aureomarginata'
- Hosta montana 'Macrophylla'
- Hosta nakaiana
- Hosta nakaiana 'Golden Tiara'
- Hosta nigrescens 'Krossa Regal'
- Hosta plantaginea
- Hosta plantaginea 'Grandiflora'
- Hosta sieboldiana
- Hosta sieboldiana 'Elegans'
- Hosta sieboldiana 'Frances Williams'
- Hosta sieboldiana 'Tokudama'
- Hosta undulata 'Albomarginata'
- Hosta undulata 'Univittata'
- Hosta ventricosa 'Aureomaculata'
- Hosta x tardiana
- Hosta x tardiana 'Bright Glow'
- Houttuynia cordata
- Houttuynia cordata 'Chameleon'
- Houttuynia cordata 'Variegata'
- Hovea elliptica
- Hoya australis
- Hoya carnosa
- Hoya cumingiana
- Humulus lupulus
- Hunnemannia fumariifolia
- Hura crepitans
- Hyacinthoides hispanica
- Hyacinthoides hispanica 'Rose Queen'
- Hyacinthoides non-scripta
- Hyacinthus orientalis
- Hyacinthus orientalis 'Blue Jacket'
- Hyacinthus orientalis 'Fondant'
- Hyacinthus orientalis 'Splendid Cornelia'
- Hydrangea anomala
- Hydrangea anomala subsp. petiolaris
- Hydrangea arborescens
- Hydrangea arborescens 'Annabelle'
- Hydrangea arborescens 'Grandiflora'
- Hydrangea arborescens 'Incrediball Blush'
- Hydrangea arborescens 'Invincibelle Limetta'
- Hydrangea arborescens 'Invincibelle Mini Mauvette'
- Hydrangea arborescens 'Invincibelle Wee White'
- Hydrangea arborescens 'Invincibelle'
- Hydrangea arborescens 'Lime Rickey'
- Hydrangea arborescens 'Strong Annabelle'
- Hydrangea arborescens subsp. arborescens
- Hydrangea arborescens subsp. discolor 'Sterilis'
- Hydrangea arborescens subsp. radiata
- Hydrangea aspera
- Hydrangea aspera 'Macrophylla'
- Hydrangea aspera subsp. sargentiana
- Hydrangea heteromalla
- Hydrangea macrophylla
- Hydrangea macrophylla 'Adula'
- Hydrangea macrophylla 'Amsterdam'
- Hydrangea macrophylla 'Ayesha'
- Hydrangea macrophylla 'Berliner Spree'
- Hydrangea macrophylla 'Blaumeise'
- Hydrangea macrophylla 'Blue Wave'
- Hydrangea macrophylla 'Bläuling'
- Hydrangea macrophylla 'Bouquet Rose'
- Hydrangea macrophylla 'Charm'
- Hydrangea macrophylla 'Endless Summer The Bride'
- Hydrangea macrophylla 'Forever and Ever Blue'
- Hydrangea macrophylla 'Forever and Ever Pink'
- Hydrangea macrophylla 'Heinrichsberg'
- Hydrangea macrophylla 'Kanmara Pink'
- Hydrangea macrophylla 'Kardinal'
- Hydrangea macrophylla 'Let's Dance Big Easy'
- Hydrangea macrophylla 'Leuchtfeuer'
- Hydrangea macrophylla 'Libelle'
- Hydrangea macrophylla 'Möwe'
- Hydrangea macrophylla 'Parzifal'
- Hydrangea macrophylla 'Peppermint'
- Hydrangea macrophylla 'Queen Wilhelmine'
- Hydrangea macrophylla 'Red Ace'
- Hydrangea macrophylla 'Renate Steiniger'
- Hydrangea macrophylla 'Romance'
- Hydrangea macrophylla 'Rosita'
- Hydrangea macrophylla 'Saxon Gräfin Cosel'
- Hydrangea macrophylla 'Saxon Schloss Wackerbarth'
- Hydrangea macrophylla 'Schöne Bautznerin'
- Hydrangea macrophylla subsp. serrata
- Hydrangea paniculata
- Hydrangea paniculata 'Bobo'
- Hydrangea paniculata 'Candlelight'
- Hydrangea paniculata 'Grandiflora'
- Hydrangea paniculata 'Kyushu'
- Hydrangea paniculata 'Limelight'
- Hydrangea paniculata 'Little Lime'
- Hydrangea paniculata 'Little Quick Fire'
- Hydrangea paniculata 'Magical Candle'
- Hydrangea paniculata 'Magical Fire'
- Hydrangea paniculata 'Magical Flame'
- Hydrangea paniculata 'Mega Pearls'
- Hydrangea paniculata 'Midlate Summer'
- Hydrangea paniculata 'Pinky Winky'
- Hydrangea paniculata 'Silver Dollar'
- Hydrangea paniculata 'Sky Light'
- Hydrangea quercifolia
- Hydrangea quercifolia 'Ruby Slippers'
- Hydrangea quercifolia 'Snowflake'
- Hydrangea serrata
- Hydrangea serrata 'Bluebird'
- Hydrangea serrata 'Preziosa'
- Hydrangea serrata 'Rosalba'
- Hydrangea serrata 'Tuff Stuff'
- Hydrangea serrata var. koreana
- Hydrocleys martii
- Hydrocotyle bonariensis
- Hylomecon japonica
- Hylotelephium cauticola
- Hylotelephium cauticola 'Robustum'
- Hylotelephium ewersii
- Hylotelephium populifolium
- Hylotelephium spectabile
- Hylotelephium spectabile 'Brilliant'
- Hylotelephium spectabile 'Carl'
- Hylotelephium spectabile 'Meteor'
- Hylotelephium spectabile 'Purple Emperor'
- Hylotelephium spectabile 'Stardust'
- Hylotelephium telephium
- Hylotelephium telephium 'Herbstfreude'
- Hylotelephium telephium 'Karfunkelstein'
- Hylotelephium telephium 'Matrona'
- Hylotelephium telephium 'Xenox'
- Hymenocallis eucharidifolia
- Hymenocallis x festalis
- Hymenolepis parviflora
- Hyophorbe lagenicaulis
- Hyoscyamus albus
- Hyoscyamus niger
- Hyoscyamus scopolia
- Hypericum Hidcote
- Hypericum Magic Marbles Red
- Hypericum Miracle Marvel
- Hypericum androsaemum
- Hypericum beanii
- Hypericum calycinum
- Hypericum cerastoides
- Hypericum hircinum
- Hypericum patulum 'Sungold'
- Hypericum perforatum
- Hypericum pulchrum
- Hypericum x inodorum
- Hypericum x inodorum 'Excellent Flair'
- Hypericum x inodorum 'Magical Red'
- Hypoestes phyllostachya
- Hypolepis punctata
- Hypoxis hemerocallidea
- Hypoxis villosa
- Hyssopus officinalis
- Hyssopus officinalis 'Rosea'