Hedychium gardnerianum
Helenium ‘Moerheim Beauty’
Helenium ‘Sahin’s Early Flowerer’
Helenium ‘Wyndley’
Helianthemum ‘Beech Park Red’
Helianthemum ‘Cerise Queen’
Helianthemum ‘Supreme’
Helianthus x laetiflorus ‘Lemon Queen’
Hemerocallis ‘El Desperado’
Hemerocallis ‘Joan Senior’
Hepatica epipactis
Hepatica nobilis indigo-flowered
Hepatica x media ‘Harvington Beauty’
Hesperantha coccinea ‘Wilfred H. Bryant’
Heuchera ‘Prince’
Hibiscus syriacus ‘Marina’
Hydrangea ‘Black Steel Zebra’
Hydrangea aspera ‘Bellevue’
Hydrangea aspera ‘Kawakamii’
Hydrangea macrophylla ‘Altona’
Hydrangea macrophylla ‘Bachsteize’
Hydrangea macrophylla ‘Bela’
Hydrangea macrophylla ‘Blaumeise’
Hydrangea macrophylla ‘Dart’s Little Dot’
Hydrangea macrophylla ‘Eldorado’
Hydrangea macrophylla ‘Enziadom’
Hydrangea macrophylla ‘Kardinal’
Hydrangea macrophylla ‘Lanarth white’
Hydrangea macrophylla ‘Madame Emile Mouillère’
Hydrangea macrophylla ‘Merveille Sanguine’
Hydrangea macrophylla ‘Nachtigall’
Hydrangea macrophylla ‘Oregan Pride’
Hydrangea macrophylla ‘Red Baron’
Hydrangea macrophylla ‘Rotschwanz’
Hydrangea macrophylla ‘Schneeball’
Hydrangea quercifolia ‘Snowflake’
Hydrangea sargentii
Hydrangea seemmanii
Hydrangea serrata ‘Kiyosumi’
Hylotelephium erythrostictum ‘Frosty Morn’
