This list covers 45 flowers, from “Rose” to “Rue,” each one starting with the letter R. They range from garden classics and fragrant shrubs to hardy wildflowers and rare tropical orchids. Gardeners plant them for cut-flower arrangements, pollinator-friendly borders, ornamental hedges, and even culinary or medicinal uses.
Flowers are the reproductive structures of plants, built to attract pollinators like bees, birds, and moths while producing seeds for the next generation. Beyond biology, they carry deep cultural weight: the rose alone has symbolized love and passion across centuries of art, poetry, and tradition. Many R-flowers, like the red poppy, have also become lasting symbols tied to specific historical events.
Below you’ll find the table with the flower name, scientific name, growing region, color, meaning, and description.
Flower: the common name of each flower, so you can quickly find the one you’re looking for or curious about.
Scientific Name: the Latin genus and species name, useful if you want to search for detailed botanical or gardening information.
Growing Region: where the flower grows naturally or thrives best, helping you judge if it suits your climate.
Color: the typical bloom colors, so you can picture the flower or match it to your garden’s color scheme.
Meaning: the symbolic meaning often associated with the flower, handy if you’re choosing one for a bouquet or gift.
Description: a short overview of the flower’s appearance, growth habits, and any notable traits worth knowing.
Flowers
| Flower | Scientific Name | Growing Region | Color | Meaning |
|---|---|---|---|---|
| Rose | Rosa spp. | Worldwide, temperate regions | Red, pink, white, yellow | Love and passion |
| Ranunculus | Ranunculus asiaticus | Mediterranean, Asia Minor | Red, pink, orange, white | Radiant charm |
| Rhododendron | Rhododendron spp. | Asia, North America, Europe | Pink, purple, red, white | Elegance and caution |
| Red Hot Poker | Kniphofia uvaria | South Africa | Orange, red, yellow | Enthusiasm |
| Ragged Robin | Silene flos-cuculi | Europe | Pink | Wit |
| Rain Lily | Zephyranthes spp. | Americas, Caribbean | White, pink, yellow | Renewal |
| Rock Rose | Cistus spp. | Mediterranean | White, pink, purple | Popular esteem |
| Russian Sage | Salvia yangii | Central Asia | Lavender-blue | Ethereal beauty |
| Red Valerian | Centranthus ruber | Mediterranean | Red, pink, white | Ease and adaptability |
| Red Campion | Silene dioica | Europe | Pink to deep red | Youthful love |
| Red Clover | Trifolium pratense | Europe, Asia | Pink-red | Industriousness |
| Rose of Sharon | Hibiscus syriacus | East Asia | Purple, pink, white | Consumed by love |
| Rose Mallow | Hibiscus moscheutos | North America (wetlands) | Pink, white, red | Delicate beauty |
| Rose Campion | Lychnis coronaria | Southeastern Europe | Magenta | Passion |
| Rocket Larkspur | Consolida ajacis | Mediterranean | Blue, purple, pink, white | Open heart |
| Royal Poinciana | Delonix regia | Madagascar | Red-orange | Splendor |
| Rattlesnake Master | Eryngium yuccifolium | North America | Greenish-white | Protection |
| Red Bird of Paradise | Caesalpinia pulcherrima | Caribbean, tropical Americas | Red-orange with yellow edges | Freedom |
| Red Ginger | Alpinia purpurata | Pacific Islands | Red | Passion |
| Rosebay Willowherb | Chamaenerion angustifolium | Northern Hemisphere | Pink-purple | Healing |
| Rue Anemone | Thalictrum thalictroides | Eastern North America | White, pale pink | Fragility |
| Ruellia | Ruellia simplex | Mexico, South America | Purple, pink, white | Endurance |
| Rugosa Rose | Rosa rugosa | East Asia | Pink, white | Resilience |
| Runner Bean | Phaseolus coccineus | Central America | Red, orange, white | Vitality |
| Rocket | Hesperis matronalis | Eurasia | Purple, white | Watchfulness |
| Rangoon Creeper | Combretum indicum | Southeast Asia | White fading to pink/red | Ever-changing love |
| Red Yucca | Hesperaloe parviflora | Texas, Mexico | Coral-red | Protection |
| Resurrection Lily | Lycoris squamigera | East Asia | Pink | Renewal |
| Rhodochiton | Rhodochiton atrosanguineus | Mexico | Deep purple | Mystery |
| River Beauty | Chamaenerion latifolium | Arctic, subarctic regions | Pink-magenta | Wilderness |
| Rock Cress | Arabis alpina | Europe, Asia | White, pink | Simplicity |
| Rock Jasmine | Androsace spp. | Alpine Eurasia | White, pink | Delicacy |
| Rock Soapwort | Saponaria ocymoides | Southern Europe | Pink | Cheerfulness |
| Rose Verbena | Glandularia canadensis | North America | Purple-pink | Family unity |
| Rosinweed | Silphium integrifolium | Central North America | Yellow | Resilience |
| Royal Water Lily | Victoria amazonica | Amazon basin | White fading to pink | Grandeur |
| Rubber Rabbitbrush | Ericameria nauseosa | Western North America | Yellow | Endurance |
| Red Trillium | Trillium erectum | Eastern North America | Deep red | Rebirth |
| Red Columbine | Aquilegia canadensis | Eastern North America | Red and yellow | Whimsy |
| Roselle | Hibiscus sabdariffa | West Africa | Yellow with red center | Hospitality |
| Rothschild’s Slipper Orchid | Paphiopedilum rothschildianum | Borneo | Yellow-green with maroon stripes | Rarity |
| Rocktrumpet | Mandevilla splendens | Brazil | Pink, red, white | Charm |
| Ragwort | Jacobaea vulgaris | Europe | Yellow | Warning |
| Red Poppy | Papaver rhoeas | Europe, Asia | Red | Remembrance |
| Rue | Ruta graveolens | Southern Europe | Yellow | Grace and regret |
Descriptions
Rose
Classic fragrant flowering shrub prized for its layered petals; a global symbol of romance and beauty grown in countless cultivated varieties.
Ranunculus
Known for its dense, paper-thin, rose-like petals, this cool-season bloom is a favorite in bouquets for its vivid color and long vase life.
Rhododendron
A woody shrub with large trumpet-shaped flower clusters that thrives in acidic, well-drained soil; many species are native to the Himalayas.
Red Hot Poker
Also called torch lily, this striking perennial produces tall spikes of tubular flowers that shift color from red at the tip to yellow at the base.
Ragged Robin
A delicate wildflower of damp meadows with narrow, deeply notched pink petals that give it a tattered, feathery appearance.
Rain Lily
A small bulb flower that bursts into bloom suddenly after rainfall, prized in gardens for its crocus-like blossoms and easy care.
Rock Rose
A drought-tolerant shrub with papery, crinkled petals resembling wild roses; each flower lasts only a day but blooms profusely.
Russian Sage
A tall, airy perennial with silvery stems and small tubular flowers that create a hazy blue-purple cloud, beloved by pollinators.
Red Valerian
A tough, drought-hardy perennial that self-seeds readily on walls and rocky banks, producing clusters of small star-shaped flowers.
Red Campion
A woodland-edge wildflower with five notched petals and a swollen calyx, common along hedgerows across Europe.
Red Clover
A familiar meadow plant with rounded, fragrant flower heads made of many tiny florets, valued as forage and a pollinator favorite.
Rose of Sharon
A hardy flowering shrub with large hibiscus-style blooms that open fresh each day through late summer into fall.
Rose Mallow
A native swamp hibiscus that produces dinner-plate-sized flowers on tall stems, thriving in moist soil near ponds and marshes.
Rose Campion
A silvery-leaved perennial topped with vivid magenta flowers that stand out sharply against its soft, felted foliage.
Rocket Larkspur
An old cottage-garden annual with tall spikes of spurred flowers, a softer-textured relative of true delphiniums.
Royal Poinciana
A dramatic flowering tree with fern-like leaves and vivid orange-red blossoms, widely planted as a shade tree in tropical climates.
Rattlesnake Master
A prairie native with spiky, globe-shaped flower heads and yucca-like leaves, historically used by Indigenous peoples for medicine and cordage.
Red Bird of Paradise
A vibrant tropical shrub with feathery leaves and fiery, spidery flowers with long protruding stamens, popular in warm-climate gardens.
Red Ginger
A tropical plant grown for its waxy, cone-shaped red bracts that stay colorful for weeks, often used in Hawaiian floral arrangements.
Rosebay Willowherb
Also known as fireweed, this tall wildflower is famous for colonizing burned or disturbed land with spikes of bright pink blossoms.
Rue Anemone
A delicate spring woodland wildflower with dainty, cup-shaped blooms held above finely divided, clover-like leaves.
Ruellia
Known as Mexican petunia, this vigorous perennial produces funnel-shaped flowers continuously through summer heat.
Rugosa Rose
A tough, disease-resistant rose species with crinkled leaves and fragrant blooms, often used in coastal and hedge plantings.
Runner Bean
Grown as much for its bright, nectar-rich flowers as its edible pods, this climbing vine is a magnet for hummingbirds and bees.
Rocket
Also called sweet rocket or dame’s rocket, this fragrant, phlox-like biennial fills evening gardens with a sweet scent, especially strong after dusk.
Rangoon Creeper
A fast-growing tropical vine whose tubular flowers open white and deepen to red over a few days, giving multicolor clusters.
Red Yucca
Despite its name, not a true yucca — this heat-loving perennial sends up tall wands of tubular coral flowers favored by hummingbirds.
Resurrection Lily
Also called surprise lily, its fragrant flowers emerge suddenly on bare stalks in late summer, well after the foliage has died back.
Rhodochiton
Known as the purple bell vine, it produces striking pendant flowers with a pink saucer-shaped calyx and near-black bell-shaped corolla.
River Beauty
A hardy alpine relative of fireweed found along cold river gravel bars, with large showy flowers close to the ground.
Rock Cress
A low, mat-forming perennial that carpets rock gardens and walls with small four-petaled flowers in early spring.
Rock Jasmine
A cushion-forming alpine plant with tiny star-shaped flowers, adapted to thrive in the thin soils of high mountain rock crevices.
Rock Soapwort
A trailing rock-garden perennial that forms a low mound smothered in small pink flowers throughout late spring.
Rose Verbena
A spreading groundcover with clustered, fragrant flower heads that bloom nearly continuously from spring through fall.
Rosinweed
A tall prairie perennial with sunflower-like blooms and sticky, resin-scented foliage, valued by pollinators in native plantings.
Royal Water Lily
The world’s largest water lily, with enormous floating leaves and huge fragrant flowers that open white on the first night and pink the next.
Rubber Rabbitbrush
A drought-tolerant desert shrub covered in clusters of small golden flowers in late summer and fall, important for late-season pollinators.
Red Trillium
Also called wake robin, this woodland spring ephemeral has three maroon-red petals and an unpleasant odor that attracts carrion flies.
Red Columbine
A graceful native wildflower with nodding, spurred red-and-yellow blooms that are a favorite nectar source for hummingbirds.
Roselle
A hibiscus relative grown for its tart red calyces used in teas and jams, following short-lived pale yellow flowers.
Rothschild’s Slipper Orchid
One of the rarest and most prized orchids in the world, known for its huge striped petals that can span over a foot across.
Rocktrumpet
A vigorous flowering vine with glossy leaves and large trumpet-shaped blooms, a popular choice for trellises and patio containers.
Ragwort
A common wayside plant with flat-topped clusters of daisy-like yellow flowers; toxic to livestock but valuable to many insect species.
Red Poppy
A delicate wildflower with tissue-thin scarlet petals, famously associated with remembrance of soldiers lost in World War I.
Rue
An old-world herb with small mustard-yellow flowers and strongly scented blue-green leaves, historically used medicinally and symbolically.