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 |
| Ranuculus repens 'Buttered Popcorn' | Creeping buttercup | Perennial | Yellow | May | May | Z3 | 5" | Sun/Pt. Shade | |
| Ratibida pinnata | Drooping coneflower | Perennial | Yellow | Jul | Aug | Z4 | 48" | Sun | |
| Rhamnus frangula 'Asplenifolia' | Alder buckthorn | Shrub | Green-white | May | May | Z3 | 7' | Sun/Pt. Shade | |
| Ricinis communis 'Carmencita' | Red-leafed castor bean | Annual | Red | Jul | Sep | Annual | 72" | Pt. Shade | |
| Ricinis communis 'New Zealand Purple' | Purple-leafed castor bean | Annual | Purple-green | Jul | Sep | Annual | 72" | Sun | |
| Rodgersia 'Firework' | Rodgersia | Perennial | Pink | Jul | Aug | Z5 | 34" | Pt. Shade/Shade | |
| Rodgersia aesculifolia | Rodgersia | Perennial | White | Jun | Jun | Z5 | 40" | Pt. Shade/Shade | |
| Rodgersia pinnnata 'Chocolate Wing' | Rodgersia | Perennial | Pink-red | Jul | Aug | Z5 | 40" | Pt. Shade/Shade | |
| Rosa 'Carefree Beauty' | Shrub rose | Shrub | Pink | Jun | Sep | Z4 | 3' | Sun | |
| Rosa 'Morden Sunrise' | Shrub rose | Shrub | Yellow-pink | Jun | Sep | Z3 | 3' | Sun | |
| Rosa 'Nearly Wild' | Shrub rose | Shrub | Pink | Jun | Sep | Z4 | 2' | Sun | |
| Rosa Carefree Delight | Shrub rose | Shrub | Red-pink | Jun | Sep | Z4 | 3' | Sun | |
| Rosa Knock Out | Shrub rose | Shrub | Red-blue | Jun | Sep | Z4 | 4' | Sun | |
| Rudbeckia maxima | Great coneflower | Perennial | Gold-brown | Jul | Jul | Z5 | 72" | Sun | |
| Rudbeckia nitida 'Herbstsonne' | Coneflower | Perennial | Yellow-green | Jul | Aug | Z4 | 84" | Sun | |
| Rudbeckia triloba | Brown-eyed susan | Perennial | Yellow-orange | Aug | Sep | Z4 | 48" | Sun | |
| Rumex sanguineus | Bloody dock | Perennial | Green | Jul | Aug | Z5 | 24" | Sun |