Here you’ll find 32 Flowers that start with R, organized from “Rafflesia” to “Ruellia (Mexican petunia)”. These species range from tiny garden annuals to large tropical blooms and are used in gardens, bouquets, and ecological restorations.
Flowers that start with R are a diverse group of showy plants whose common names begin with the letter R. Notable examples include Rafflesia, the world’s largest flower, and rose cultivars central to gardens and floristry.
Below you’ll find the table with scientific name, colors, locations and season.
Scientific name: Shows the binomial name so you can look up botanically accurate information and cross-reference plant records worldwide.
Colors: Lists principal flower colors to help you choose plants for palettes, bouquets, or habitat-attracting planting schemes.
Locations: Notes native ranges and common naturalized regions so you can assess climate suitability and local availability.
Season: Indicates typical flowering months or seasonal windows, helping you plan planting, cutting schedules, and garden displays.
Flowers that start with R
| Common name | Scientific name | Colors | Native locations & season |
|---|---|---|---|
| Ragged robin | Silene flos-cuculi | pink | Europe; May–Jul |
| Rain lily | Zephyranthes grandiflora | pink, white, yellow | Americas; after rains Jul–Sep |
| Ranunculus | Ranunculus asiaticus | pink, red, white | Eastern Mediterranean; Mar–May |
| Rattlebox | Crotalaria retusa | yellow | Tropical Americas; Jun–Sep |
| Rattlesnake master | Eryngium yuccifolium | white, green | North America; Jul–Sep |
| Ragwort | Senecio jacobaea | yellow | Europe; Jun–Aug |
| Red campion | Silene dioica | pink | Europe; May–Aug |
| Red clover | Trifolium pratense | pink, purple | Europe, W Asia; May–Sep |
| Red ginger | Alpinia purpurata | red, pink | SE Asia, Pacific islands; year-round (tropics) |
| Red hot poker | Kniphofia uvaria | red, orange, yellow | South Africa; Jun–Sep |
| Red spider lily | Lycoris radiata | red | China, Japan; Aug–Oct |
| Red valerian | Centranthus ruber | pink, red, white | Mediterranean; May–Sep |
| Redbud | Cercis canadensis | pink, magenta | Eastern North America; Mar–Apr |
| Red flowering gum | Corymbia ficifolia | red, pink, orange | Southwest Australia; Sep–Nov (S) |
| Rosy periwinkle | Catharanthus roseus | pink, white | Madagascar; year-round (tropics) |
| Rhododendron | Rhododendron ponticum | pink, white, purple | Asia, Europe; Apr–Jun |
| Rhodanthemum | Rhodanthemum hosmariense | white, yellow | North Africa; Apr–Jun |
| Rose campion | Silene coronaria | magenta, pink, white | SE Europe; Jun–Jul |
| Rose mallow | Hibiscus moscheutos | white, pink, red | Eastern North America; Jul–Sep |
| Rose of Sharon | Hibiscus syriacus | white, pink, purple | East Asia; Jul–Sep |
| Rosebay willowherb | Chamerion angustifolium | pink, magenta | Northern Hemisphere temperate; Jul–Sep |
| Rockrose | Cistus ladanifer | white, pink | Mediterranean; Apr–Jun |
| Rock cress | Aubrieta deltoidea | purple, pink, blue | Southern Europe; Apr–May |
| Rock samphire | Crithmum maritimum | yellow-green | Coastal Europe; Jun–Aug |
| Rosinweed | Silphium integrifolium | yellow | North America; Jul–Sep |
| Rudbeckia | Rudbeckia hirta | yellow, orange, brown | North America; Jul–Sep |
| Ruellia (Mexican petunia) | Ruellia brittoniana | purple, blue, white | Americas; Summer–Fall |
| Rue | Ruta graveolens | yellow | Mediterranean; May–Aug |
| Royal Poinciana | Delonix regia | red, orange | Madagascar (native); spring–summer (tropics) |
| Rafflesia | Rafflesia arnoldii | reddish, spotted | SE Asia; variable, short-lived blooms |
| Rosemary | Salvia rosmarinus | blue, white, pink | Mediterranean; Mar–May (N) |
| Red columbine | Aquilegia canadensis | red, yellow | North America; Apr–Jun |
Descriptions
Ragged robin
Delicate, fringe-petaled wildflower of damp meadows and cottage gardens; loved for airy, ragged petals and pollinator appeal.
Rain lily
Small bulbous lilies that burst into bloom after heavy rains; great for containers and seasonal displays.
Ranunculus
Persian buttercup prized in floristry for ruffled, multi-petaled blooms and vibrant bouquet colors.
Rattlebox
Tropical, pea-family plant with showy yellow pea-flowers; used in warm-climate gardens and as a summer ornamental.
Rattlesnake master
Prairie native with spiky, globular flowerheads; architectural, drought-tolerant, and excellent for dried arrangements.
Ragwort
Bright yellow wildflower common in meadows and roadsides; important nectar source though mildly toxic to livestock.
Red campion
Cottage-garden and wildflower favorite with cup-shaped pink blooms; thrives in shady, moist edges.
Red clover
Familiar meadow flower and forage crop; nectar-rich, used in meadows and pollinator mixes.
Red ginger
Tropical perennial with bold red bracts; popular in floral design and humid gardens.
Red hot poker
Tall, torch-like flower spikes that attract hummingbirds; dramatic perennial for borders and island beds.
Red spider lily
Striking autumn-blooming bulb with recurved petals; appears suddenly in clumps, often near paths or woods.
Red valerian
Long-blooming cottage garden plant with clusters of nectar-rich flowers; tolerates poor soils and walls.
Redbud
Small spring-flowering tree with pea-like blooms on bare branches; excellent ornamental for early color.
Red flowering gum
Showy eucalyptus relative with large, bright clusters of flowers; prized street and specimen tree in warm climates.
Rosy periwinkle
Widely grown tropical annual with glossy foliage and flat, colorful blooms; common in beds and containers.
Rhododendron
Large-flowered shrubs and small trees used widely in gardens and parks for bold spring displays.
Rhodanthemum
Low, daisy-like perennial for rock gardens and borders; long-blooming with neat foliage.
Rose campion
Silver-foliaged perennial with vivid magenta flowers; great for cottage gardens and sunny borders.
Rose mallow
Swamp hibiscus with very large, tropical-looking blooms; used in wet gardens and as dramatic cut flowers.
Rose of Sharon
Hardy shrub hibiscus with trumpet-shaped flowers; popular hedging plant and late-summer bloomer.
Rosebay willowherb
Also called fireweed; tall, showy spikes that colonize disturbed ground and light up meadows.
Rockrose
Evergreen shrub with papery, single blooms and sticky, fragrant leaves; excellent for dry, sunny gardens.
Rock cress
Low, mat-forming perennial for rock gardens and walls; early spring carpet of colorful blooms.
Rock samphire
Salt-tolerant coastal plant with aromatic foliage and clusters of yellow-green flowers; often foraged and used in seaside gardens.
Rosinweed
Tall prairie perennial with large daisy-like flowers; good for meadows and native plantings.
Rudbeckia
Classic summer wildflower (black-eyed Susan) valued in borders, meadows, and as cut flowers.
Ruellia (Mexican petunia)
Long-blooming, tropical-looking perennial with funnel-shaped flowers; popular in hot borders, sometimes invasive.
Rue
Aromatic herb with small yellow blooms; grown for foliage, historical gardens, and medicinal uses (handle with care).
Royal Poinciana
Spectacular tropical tree with flamboyant fern-like foliage and wide canopy of flame-colored blossoms.
Rafflesia
Giant parasitic flower famous for its huge, stink-scented bloom; notable in wildflower and natural-history guides.
Rosemary
Fragrant evergreen herb with small tubular flowers; garden staple that attracts pollinators and adds foliage interest.
Red columbine
Native woodland wildflower with pendulous, nectar-filled spurs; great for naturalized and shade gardens.
