Great Plants for Adventurous Gardeners: A Hudson Valley Destination
| Photo | Botanical Name | Common Name | Plant Type | Flower Color | Blooming Starts | Blooming Ends | Hardiness Zone | Height | Exposure Type |
| Hakonechloa macra 'Aureola' | Golden-variegated Hakone grass | Ornamental Grass | Yellow-tan | Jul | Aug | Z5 | 12" | Pt. Shade/Shade | |
| Helenium 'Coppelia' | Sneezeweed | Perennial | Red-orange | Aug | Oct | Z4 | 36" | Sun | |
| Helenium 'Kanaria' | Sneezeweed | Perennial | Yellow | Aug | Oct | Z4 | 36" | Sun | |
| Helenium 'Mardi Gras' | Sneezeweed | Perennial | Yellow-orange-red | Aug | Oct | Z4 | 36" | Sun | |
| Helenium 'Zimbelstern' | Sneezeweed | Perennial | Yellow-brown | Aug | Oct | Z5 | 48" | Sun | |
| Helenium flexuosum | Sneezeweed | Perennial | Yellow | Jul | Aug | Z4 | 20" | Sun | |
| Helianthus 'Lemon Queen' | Sunflower | Perennial | Yellow | Aug | Sep | Z4 | 60" | Sun | |
| Helianthus salicifolius 'First Light' | Sunflower | Perennial | Yellow | Sep | Oct | Z5 | 48" | Sun | |
| Helictotrichon sempervirens 'Sapphire' | Blue oat grass | Ornamental Grass | Blue-white | May | Jun | Z5 | 24" | Sun/Pt. Shade | |
| Heliopsis helianthoides 'Prairie Sunset' | Ox-eye | Perennial | Yellow-red | Jul | Aug | Z4 | 48" | Sun | |
| Helleborus orientalis | Lenten rose | Perennial | Yellow, purple | Apr | May | Z2 | 18" | Pt. Shade/Shade | |
| Hemerocallis 'Autumn Minaret' | Daylily | Perennial | Yellow-orange | Jul | Sep | Z3 | 48" | Sun | |
| Hemerocallis 'Berkshire Star' | Daylily | Perennial | Yellow-gold | Jul | Jul | Z3 | 60" | Sun | |
| Hemerocallis 'Cinderella's Dark Side' | Daylily | Perennial | Red-black | Jul | Jul | Z3 | 36" | Sun | |
| Hemerocallis 'Lady Fingers' | Daylily | Perennial | Yellow-green | Jun | Jul | Z3 | 32" | Sun | |
| Hemerocallis 'Little Grapette' | Daylily | Perennial | Purple-green | Jun | Jul | Z3 | 12" | Sun | |
| Hemerocallis 'Woodside Fire Dance' | Daylily | Perennial | Red-yellow | Jun | Jul | Z4 | 26" | Sun | |
| Heptacodium miconioides | Seven-son flower | Shrub | White | Oct | Nov | Z5 | 15' | Sun/Pt. Shade | |
| Heuchera 'Amber Waves' | Coral bells | Perennial | Rose-pink | Jun | Jun | Z4 | 12" | Pt. Shade | |
| Heuchera 'Amethyst Myst' | Coral bells | Perennial | Pink | Jun | Jun | Z4 | 24" | Sun/Pt. Shade | |
| Heuchera 'Caramel' | Coral bells | Perennial | White | May | Jun | Z4 | 15" | Pt. Shade | |
| Heuchera 'Frosted Violet' | Coral bells | Perennial | Pink | Jun | Jun | Z4 | 15" | Sun/Pt. Shade | |
| Heuchera 'Key Lime Pie' | Coral bells | Perennial | White | Jun | Jun | Z4 | 12" | Pt. Shade | |
| Heuchera 'Plum Pudding' | Coral bells | Perennial | Pink | Jun | Jun | Z5 | 24" | Pt. Shade | |
| Heuchera 'Silver Scrolls' | Coral bells | Perennial | White | Jun | Jun | Z4 | 18" | Sun/Pt. Shade | |
| Heuchera americana 'Dales Strain' | Coral bells | Perennial | White | May | Jun | Z3 | 18" | Sun/Pt. Shade | |
| Heuchera villosa 'Autumn Bride' | Autumn coral bells | Perennial | White | Sep | Oct | Z4 | 24" | Pt. Shade/Shade | |
| Heuchera villosa f. purpurea 'Bronze Wave' | Autumn coral bells | Perennial | White | Sep | Oct | Z4 | 24" | Sun/Pt. Shade | |
| Hibiscus 'Plum Crazy' | Rose mallow | Perennial | Purple-pink | ||||||
| Hibiscus acetosella 'Red Shield' | Red-leafed mallow | Annual | Black-red | Jun | Sep | Tender | 48" | Sun/Pt. Shade | |
| Hibiscus Blue Satin | Rose-of-Sharon | Shrub | Blue | Jul | Sep | Z5 | 8' | Sun | |
| Hibiscus x 'Kopper King' | Rose mallow | Perennial | White-red | Jul | Aug | Z4 | 42" | Sun/Pt. Shade | |
| Hibiscus x 'Moy Grande' | Rose mallow | Perennial | Rose-red | Jul | Aug | Z3 | 42" | Sun/Pt. Shade | |
| Hosta 'Abiqua Drinking Gourd' | Plantain lily | Perennial | White | Jul | Aug | Z3 | 20" | Pt. Shade/Shade | |
| Hosta 'Cherry Berry' | Plantain lily | Perennial | Violet | Jul | Aug | Z3 | 15" | Pt. Shade/Shade | |
| Hosta 'Climax' | Plantain lily | Perennial | Lavender | Jul | Jul | Z3 | 20" | Pt. Shade/Shade | |
| Hosta 'Fragrant Bouquet' | Plantain lily | Perennial | White | Jul | Aug | Z3 | 18" | Pt. Shade/Shade | |
| Hosta 'Ginko Craig' | Plantain lily | Perennial | Purple | Jul | Aug | Z3 | 10" | Pt. Shade/Shade | |
| Hosta 'Golden Tiara' | Plantain lily | Perennial | Lavender | Jul | Aug | Z3 | 14" | Pt. Shade/Shade | |
| Hosta 'Halycon' | Plantain lily | Perennial | Blue-purple | Jul | Jul | Z3 | 16" | Pt. Shade/Shade | |
| Hosta 'June' | Plantain lily | Perennial | Lavender | Jul | Jul | Z3 | 20" | Pt. Shade/Shade | |
| Hosta 'Patriot' | Plantain lily | Perennial | Lavender | Jul | Jul | Z3 | 16" | Pt. Shade/Shade | |
| Hosta 'Paul's Glory' | Plantain lily | Perennial | Lavender | Jul | Jul | Z3 | 20" | Pt. Shade/Shade | |
| Hosta 'Sagae' | Plantain lily | Perennial | Lavender | Jul | Aug | Z3 | 30" | Pt. Shade/Shade | |
| Hosta 'Stiletto' | Plantain lily | Perennial | Purple | Aug | Aug | Z3 | 10" | Pt. Shade/Shade | |
| Hosta 'Sum and Substance' | Plantain lily | Perennial | Lavender | Jul | Aug | Z4 | 36" | Pt. Shade/Shade | |
| Hosta sieboldiana 'Elegans' | Plantain lily | Perennial | White | Jul | Aug | Z3 | 30" | Pt. Shade/Shade | |
| Hydrangea arborescens White Dome | Smooth hydrangea | Shrub | White | Jun | Sep | Z5 | 5' | Sun/Pt. Shade | |
| Hydrangea macrophylla 'Lemon Wave' | Bigleaf hydrangea | Shrub | Blue | Jun | Sep | Z5 | 3' | Sun/Pt. Shade | |
| Hydrangea paniculata 'Limelight' | Panicle hydrangea | Shrub | Lime-green-white | Jun | Sep | Z3 | 6' | Sun/Pt. Shade | |
| Hydrangea paniculata 'Pink Diamond' | Panicle hydrangea | Shrub | White-pink | Jun | Sep | Z3 | 6' | Sun/Pt. Shade | |
| Hydrangea paniculata 'The Swan' | Panicle hydrangea | Shrub | White | Jun | Sep | Z4 | 6' | Sun/Pt. Shade | |
| Hydrangea quercifolia 'Snow Queen' | Oak-leaf hydrangea | Shrub | White | Jun | Oct | Z4 | 7' | Sun/Pt. Shade | |
| Hydrangea serrata 'Blue Billow' | Sawtooth hydrangea | Shrub | Blue-pink | Jun | Sep | Z5 | 4' | Sun/Pt. Shade | |
| Hypericum calycinum 'Brigadoon' | St. John's wort | Perennial | Yellow-gold | Jun | Jul | Z5 | 15" | Pt. Shade |