| Add to Export List | Image | Common Name | Scientific Name | Cultivar/Variety | Plant Type |
|---|---|---|---|---|---|
| Add To List Remove From List | Rosy Returns Daylily | Hemerocallis | 'Rosy Returns' | Hardy perennial | |
| Add To List Remove From List | Rotstralbusch Red Switch Grass | Panicum virgatum | 'Rotstralbusch' | Hardy perennial, Ornamental grass | |
| Add To List Remove From List | Rouge Cardinal Clematis | Clematis | 'Rouge Cardinal' | Vine | |
| Add To List Remove From List | Rough Blazingstar | Liatris aspera | Hardy perennial, Wildflower | ||
| Add To List Remove From List | Rouguchi Clematis | Clematis | 'Rouguchi' | Vine | |
| Add To List Remove From List | Round-lobed Hepatica | Anemone americana | Hardy perennial | ||
| Add To List Remove From List | Roy Davidson Lungwort | Pulmonaria longifolia | 'Roy Davidson' | Hardy perennial | |
| Add To List Remove From List | Royal Blue Veronica | Veronica teucrium | 'Royal Blue' | Hardy perennial | |
| Add To List Remove From List | Royal Bonica® Rose | Rosa | Deciduous shrub | ||
| Add To List Remove From List | Royal Burgundy™ Barberry | Berberis thunbergii var. atropurpurea | 'Royal Burgundy™' | Deciduous shrub | |
| Add To List Remove From List | Royal Candles Veronica | Veronica spicata | 'Royal Candles' | Hardy perennial | |
| Add To List Remove From List | Royal Fern | Osmunda regalis var. spectablis | Hardy perennial | ||
| Add To List Remove From List | Royal Frost Birch | Betula | 'Royal Frost' | Deciduous tree | |
| Add To List Remove From List | Royal Gold Woadwaxen | Genista tinctoria | 'Royal Gold' | Deciduous shrub | |
| Add To List Remove From List | Royal Heritage Lenten Rose | Helleborus | 'Royal Heritage' | Hardy perennial | |
| Add To List Remove From List | Royal Purple Smokebush | Cotinus coggygria | 'Royal Purple' | Deciduous shrub | |
| Add To List Remove From List | Royal Raindrops Crabapple | Malus | Deciduous tree | ||
| Add To List Remove From List | Royal Standard Hosta | Hosta | 'Royal Standard' | Hardy perennial | |
| Add To List Remove From List | Royal Star Magnolia | Magnolia stellata | 'Royal Star' | Deciduous tree | |
| Add To List Remove From List | Royalty Crabapple | Malus | 'Royalty' | Deciduous tree | |
| Add To List Remove From List | Royalty Lilac | Syringa x josiflexa | 'Royalty' | Deciduous shrub | |
| Add To List Remove From List | Rozanne Geranium | Geranium | 'Rozanne' | Ground cover, Hardy perennial | |
| Add To List Remove From List | Rubra Pasque Flower | Pulsatilla vulgaris | 'Rubra' | Hardy perennial | |
| Add To List Remove From List | Rubra Spicata Norway Spruce | Picea abies | 'Rubra Spicata' | Evergreen tree | |
| Add To List Remove From List | Rubra Spiderwort | Tradescantia x andersoniana | 'Rubra' | Hardy perennial | |
| Add To List Remove From List | Ruby Glow Clematis | Clematis | 'Ruby Glow' | Vine | |
| Add To List Remove From List | Ruby Grass | Melinus nerviglumnis | 'Pink Crystals' | Annual | |
| Add To List Remove From List | Ruby Mist Coral Bells | Heuchera | 'Ruby Mist' | Hardy perennial | |
| Add To List Remove From List | Ruby Spice Summersweet | Clethra alnifolia | 'Ruby Spice' | Deciduous shrub | |
| Add To List Remove From List | Ruby Star Coneflower | Echinacea purpurea | 'Ruby Star' | Hardy perennial | |
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