40 Flowers that Start with “R” - Home Stratosphere

40 Flowers that Start with “R”

Here's our dedicated page listing flowers that start with "R". We have a massive flower directory, each listing includes important growing info. This page features all flowers with a first letter being "R".

Red Hot Poker Flower

Below is our expansive gallery and directory featuring flowers that start with “R”.

One example is the Red Hot Poker, whcih can be an intriguing addition to your garden without the risk of doing any harm to the overall appearance. If you don’t have it yet, you can try this flower as borders or backgrounds. They may not look like your typical flower but their foliage are still as captivating.

This perennial flower is native to South Africa and commonly found in grassy slopes and elevations of more than 3,000 feet. It can grow to a height of 2-5 feet.

Also called as Torch Lily because of its appearance, it’s noted for its brush-like spiky tubular flowers that either look like red hot pokers or torches. The flowers’ two-toned colors is because they bloom coral red and then mature to yellow.

Below is our entire gallery showcasing these flowers.

Related: 100s of Flowers from A-Z

Rainbow Cactus (Echinocereus Pectinatus)

Echinocereus pectinatus

  • Common Name: Rainbow Cactus
  • Scientific Name: Echinocereus Pectinatus
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1 to 7.8
  • Flower Color: Pink
  • Special Characteristics: Tolerates Drought, Showy Flowers, Container
  • Hardiness Zone(s): 9 to 11
  • Height At Maturity: 6″ to 12″
  • Sun: Full Sun

Rampion (Campanula rapunculoides)

rampion_Campanula rapunculoides

  • Common Name: Rampion
  • Scientific Name: Campanula rapunculoides
  • Type: Perennial
  • Water: Medium
  • Soil PH: 6.6 to 8.5
  • Flower Color: Bluish-purple flowers
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 3 to 9
  • Height At Maturity: 24-48″
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Rattail Cactus (Aporocactus Flagelliformis)

Rattail Cactus_Aporocactus flagelliformis

  • Common Name: Rattail Cactus
  • Scientific Name: Aporocactus Flagelliformis
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1 to 7.8
  • Flower Color: Pink
  • Special Characteristics: Container, Showy Flowers, Tolerates Drought
  • Hardiness Zone(s): 10 to 11
  • Height At Maturity: 18″ to 24″
  • Sun: Full Sun to Part Shade
  • Sub Type: Evergreen

Rattlesnake primary (Eryngium yuccifolium)

  • Common Name: Rattlesnake primary
  • Scientific Name: Eryngium yuccifolium
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: 5-7.3
  • Flower Color: Greenish-white
  • Special Characteristics: Showy flowers, easy-to-grow
  • Hardiness Zone(s): 3 to 8
  • Height At Maturity: 48-60′
  • Sun: Full sun
  • Sub Type: Groundcover

Rebutia (Rebutia Albiflora)

Rebutia albiflora

  • Common Name: Rebutia
  • Scientific Name: Rebutia Albiflora
  • Type: Cactus/Succulent
  • Water: Dry to Medium
  • Soil PH: 6.1 to 7.8
  • Flower Color: White
  • Special Characteristics: Container, Easy to Grow, Tolerates Drought
  • Hardiness Zone(s): 9 to 11
  • Height At Maturity: 6″ to 9″
  • Sun: Full Sun to Part Shade

Rebutia (Weingartia Neocumingii)

Weingartia neocumingii

  • Common Name: Rebutia
  • Scientific Name: Weingartia Neocumingii
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1 to 7.8
  • Flower Color: Yellow
  • Special Characteristics: Tolerates Drought, Container
  • Hardiness Zone(s): 9 to 11
  • Height At Maturity: 6″ to 12″
  • Sun: Full Sun to Part Shade

Rebutia albiflora (Aylostera albiflora)

Aylostera albiflora

  • Common Name: Rebutia albiflora
  • Scientific Name: Aylostera albiflora
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1-7.8
  • Flower Color: Pink, White/Near White
  • Special Characteristics: Container, showy flowers
  • Hardiness Zone(s): 9-11
  • Height At Maturity: 1-6″
  • Sun: Full Sun, Partial Shade
  • Sub Type: Houseplant

Rebutia Heliosa (Rebutia Heliosa)

Rebutia heliosa

  • Common Name: Rebutia
  • Scientific Name: Rebutia Heliosa
  • Type: Cactus/Succulent
  • Water: Dry to Medium
  • Soil PH: 6.1 to 7.8
  • Flower Color: Orange
  • Special Characteristics: Container, Tolerates Drought
  • Hardiness Zone(s): 9 to 11
  • Height At Maturity: 6″ to 9″
  • Sun: Partial Shade

Red Buttons Opuntia (Opuntia Quitensis)

Opuntia quitensis

  • Common Name: Red Buttons Opuntia
  • Scientific Name: Opuntia Quitensis
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1 to 7.8
  • Flower Color: Red
  • Special Characteristics: Tolerates Drought, Container
  • Hardiness Zone(s): 10 to 11
  • Height At Maturity: 6″ to 12″
  • Sun: Full Sun

Red campion (Silene dioica “Clifford Moor”)

red campion_Silene dioica 'Clifford Moor'

  • Common Name: Red campion
  • Scientific Name: Silene dioica “Clifford Moor”
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: 6-8
  • Flower Color: Pink
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 5 to 8
  • Height At Maturity: 6-18′
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Red hot poker (Kniphofia caulescens)

red hot poker_Kniphofia caulescens

  • Common Name: Red hot poker
  • Scientific Name: Kniphofia caulescens
  • Type: Perennial
  • Water: Medium
  • Soil PH: 5.6 to 7.8
  • Flower Color: Coral red to yellow
  • Special Characteristics: Attracts hummingbirds and butterflies, tolerates rabbit, deer-resistant, showy flowers
  • Hardiness Zone(s): 6 to 8
  • Height At Maturity: 8-24”
  • Sun: Full sun
  • Sub Type: Groundcover

Red hot poker (Kniphofia uvaria)

red hot poker_Kniphofia uvaria

  • Common Name: Red hot poker
  • Scientific Name: Kniphofia uvaria
  • Type: Perennial
  • Water: Medium
  • Soil PH: 5.8 – 7.0
  • Flower Color: Top flowers red; lower flowers yellow
  • Special Characteristics: Tolerates rabbit, showy flowers
  • Hardiness Zone(s): 5 to 9
  • Height At Maturity: 18-24″
  • Sun: Full sun
  • Sub Type: Groundcover

Red Torch Cactus (Echinopsis Huascha)

Echinopsis huascha

  • Common Name: Red Torch Cactus
  • Scientific Name: Echinopsis Huascha
  • Type: Cactus/Succulent
  • Water: Dry
  • Soil PH: 6.1 to 7.8
  • Flower Color: Red
  • Special Characteristics: Showy Flowers, Attracts birds and butterflies, Tolerates Drought
  • Height At Maturity: 24″ to 36″
  • Sun: Full Sun

Red twig dogwood (Cornus)

Dogwood Shrub_Cornus-part sun to sun

  • Common Name: Red twig dogwood
  • Scientific Name: Cornus
  • Type: Shrub
  • Water: Needs moderate moisture
  • Soil PH: 6.1-8.5
  • Flower Color: White/Near White
  • Special Characteristics: Attracts birds
  • Hardiness Zone(s): 4-8
  • Height At Maturity: 72-96″
  • Sun: Full Sun, Partial Shade
  • Sub Type: Deciduous

Red valerian (Centranthus ruber var. coccineus)

red valerian_Centranthus ruber var. coccineus

  • Common Name: Red valerian
  • Scientific Name: Centranthus ruber var. coccineus
  • Type: Perennial
  • Water: Medium
  • Soil PH: 6.8 – 7.8
  • Flower Color: Crimson red
  • Special Characteristics: Attracts butterflies, fragrant, showy flowers, cut flowers
  • Hardiness Zone(s): 5 to 8
  • Height At Maturity: 18-36″
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Red valerian (Centranthus ruber)

red valerian_Centranthus ruber

  • Common Name: Red valerian
  • Scientific Name: Centranthus ruber
  • Type: Perennial
  • Water: Medium
  • Soil PH: 6.1 – 7.8
  • Flower Color: Pale to crimson red
  • Special Characteristics: Attracts butterflies, fragrant, showy flowers, easy-to-grow, cut flowers
  • Hardiness Zone(s): 5 to 8
  • Height At Maturity: 18-36″
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Red-veined dock (Rumex sanguineus)

red-veined dock_Rumex sanguineus

  • Common Name: Red-veined dock
  • Scientific Name: Rumex sanguineus
  • Type: Perennial
  • Water: Medium
  • Soil PH: 6.1 to 7.5
  • Flower Color: Green maturing to reddish-brown
  • Special Characteristics: Showy flowers, easy-to-grow, container
  • Hardiness Zone(s): 5 to 8
  • Height At Maturity: 12-18′
  • Sun: Full sun
  • Sub Type: Groundcover

Redvein Enkianthus (Enkianthus campanulatus)

furin-tsutsuji_Enkianthus campanulatus

  • Common Name: Redvein Enkianthus
  • Scientific Name: Enkianthus campanulatus
  • Type: Shrub
  • Water: Needs moderate moisture
  • Soil PH: 4.5-6
  • Flower Color: Yellow
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 4-7
  • Height At Maturity: 72″ to 96″
  • Sun: Full Sun to Part Shade
  • Sub Type: Deciduous

Regal geranium (Pelargonium × domesticum)

regal geranium_Pelargonium × domesticum

  • Common Name: Regal geranium
  • Scientific Name: Pelargonium × domesticum
  • Type: Perennial
  • Water: Medium
  • Soil PH: 5.6-6.0
  • Flower Color: Pink, purple, lavander, red
  • Special Characteristics: Showy flowers, easy-to-grow, container
  • Hardiness Zone(s): 10 to 11
  • Height At Maturity: 12-36″
  • Sun: Full sun to part shade
  • Sub Type: Houseplant

Reticulated iris (Iris reticulata)

reticulated iris_Iris reticulata

  • Common Name: Reticulated Iris
  • Scientific Name: Iris reticulata
  • Type: Bulb, Perrenial
  • Water: Medium
  • Soil PH: 6.1 to 7.8
  • Flower Color: Blue-purple
  • Special Characteristics: Showy flowers, fragrant, cut flowers, tolerate deer, tolerate drought
  • Hardiness Zone(s): 5 to 9
  • Height At Maturity: 3″ to 6″
  • Sun: Full sun to part shade
  • Sub Type: Deciduous

Rex Begonia (Begonia rex cultorum)

Rex-Begonia_Begonia-rex-cultorum

  • Common Name: Rex Begonia
  • Scientific Name: Begonia rex cultorum
  • Type: Annual
  • Water: Medium
  • Soil PH: 5.7 to 6.2
  • Flower Color: Flowers not showy
  • Special Characteristics: Container
  • Hardiness Zone(s): 10 to 11
  • Height At Maturity: 12″-18″
  • Sun: Full Shade
  • Sub Type: Houseplant

Rhipsalis Neves Armondii (Rhipsalis Neves Armondii)

Rhipsalis neves-armondii

  • Common Name: Rhipsalis Neves Armondii
  • Scientific Name: Rhipsalis Neves Armondii
  • Type: Cactus/Succulent
  • Water: Dry to Medium
  • Soil PH: 6.1 to 6.5
  • Flower Color: White
  • Special Characteristics: Container, Tolerates Drought
  • Hardiness Zone(s): 10 to 11
  • Height At Maturity: 12″ to 36″
  • Sun: Partial Shade to Full Shade

Rhododendron (Rhododendron)

Rhododendron Shrub_Rhododendron-part shade to full shade

  • Common Name: Rhododendron
  • Scientific Name: Rhododendron
  • Type: Shrub
  • Water: Needs moderate moisture
  • Soil PH: 4.5-5.5
  • Flower Color: Purplish-red with dark red spotting
  • Special Characteristics: Attracts birds and butterflies, showy flowers, tolerates rabbit
  • Hardiness Zone(s): 5-8
  • Height At Maturity: 48-72″
  • Sun: Full Sun, Partial Shade
  • Sub Type: Evergreen

Robins plantain (Erigeron pulchellus)

Robin's plantain_Erigeron pulchellus

  • Common Name: Robins plantain
  • Scientific Name: Erigeron pulchellus
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: 4.8–7.8
  • Flower Color: Pale violet rays with yellow
  • Special Characteristics: Attracts butterflies, showy flowers, easy-to-grow
  • Hardiness Zone(s): 3 to 8
  • Height At Maturity: 18-24″
  • Sun: Full sun
  • Sub Type: Groundcover

Rocket larkspur (Consolida ambigua)

18-rocket-larkspur_consolida-ambigua

  • Common Name: Rocket larkspur
  • Scientific Name: Consolida ambigua
  • Type: Annual
  • Water: Moderate
  • Soil PH: 6.1 to 7.3
  • Flower Color: White, Lilac and Pink
  • Special Characteristics: Attracts butterflies and birds.
  • Hardiness Zone(s): 2 through 11
  • Height At Maturity: 36″
  • Sun: Plenty of sun as well as some shade

Rocky mountain iris (Iris missouriensis)

Rocky mountain iris_Iris missouriensis

  • Common Name: Rocky mountain iris
  • Scientific Name: Iris missouriensis
  • Type: Perennial
  • Water: Medium to wet
  • Soil PH: 6.0 – 8.0
  • Flower Color: Violet blue
  • Special Characteristics: Deer-resistant, showy flowers, easy to grow
  • Hardiness Zone(s): 3 to 8
  • Height At Maturity: 12-24″
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Rodgersia (Rodgersia aesculifolia)

rodgersia_Rodgersia aesculifolia

  • Common Name: Rodgersia
  • Scientific Name: Rodgersia aesculifolia
  • Type: Perennial
  • Water: Medium to wet
  • Soil PH: 5.6-7.5
  • Flower Color: Creamy white (sometimes pink)
  • Special Characteristics: Showy flowers, fragrant
  • Hardiness Zone(s): 5 to 7
  • Height At Maturity: 36-60′
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Rodgersia (Rodgersia pinnata)

rodgersia_Rodgersia pinnata

  • Common Name: Rodgersia
  • Scientific Name: Rodgersia pinnata
  • Type: Perennial
  • Water: Medium to wet
  • Soil PH: 6-8
  • Flower Color: Creamy pink to red
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 5 to 7
  • Height At Maturity: 36-48′
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Rodgersia (Rodgersia podophylla)

rodgersia_Rodgersia podophylla

  • Common Name: Rodgersia
  • Scientific Name: Rodgersia podophylla
  • Type: Perennial
  • Water: Medium to wet
  • Soil PH: 5.6-6
  • Flower Color: Creamy white
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 5 to 8
  • Height At Maturity: 36-60′
  • Sun: Part shade
  • Sub Type: Groundcover

Roof iris (Iris tectorum)

roof iris_Iris tectorum

  • Common Name: Roof iris
  • Scientific Name: Iris tectorum
  • Type: Perennial
  • Water: Medium
  • Soil PH: 6.1 – 7.8
  • Flower Color: Deep lilac-blue purple with white crest
  • Special Characteristics: Deer-resistant, showy flowers, cut flowers, easy to grow
  • Hardiness Zone(s): 4 to 9
  • Height At Maturity: 12-18”
  • Sun: Full sun to part shade
  • Sub Type: Groundcover

Rose Mallow (Hibiscus moscheutos)

Rose-Mallow_Hibiscus-moscheutos

  • Common Name: Rose Mallow
  • Scientific Name: Hibiscus moscheutos
  • Type: Perennial
  • Water: Medium to wet
  • Soil PH: 6.8-7.7
  • Flower Color: Red with deeper red eye
  • Special Characteristics: Attracts birds and butterflies, Container
  • Hardiness Zone(s): 5 to 9
  • Height At Maturity: 36″-60″
  • Sun: Full Sun
  • Sub Type: Groundcover

Rose of Sharon (Hibiscus syriacus)

rose of Sharon_Hibiscus syriacus

  • Common Name: Rose of Sharon
  • Scientific Name: Hibiscus syriacus
  • Type: Shrub
  • Water: Medium
  • Soil PH: 5.6 to 7.5
  • Flower Color: Pink, red, White
  • Special Characteristics: Attracts birds and butterflies, Showy flowers, Cut flowers
  • Hardiness Zone(s): 5 to 11
  • Height At Maturity: 10-15’
  • Sun: Full sun
  • Sub Type: Deciduous

Rosemary (Rosmarinus officinalis)

rosemary_Rosmarinus officinalis

  • Common Name: Rosemary
  • Scientific Name: Rosmarinus officinalis
  • Type: Perennial, Shrub
  • Water: Dry to medium
  • Soil PH: 6.6-8.5
  • Flower Color: Pale blue to white
  • Special Characteristics: Attracts butterflies, deer-resistant, fragrant, showy flowers
  • Hardiness Zone(s): 8 to 10
  • Height At Maturity: 4-6
  • Sun: Full sun
  • Sub Type: Herb

Rosinweed sunflower (Helianthus silphioides)

rosinweed sunflower_Helianthus silphioides

  • Common Name: Rosinweed sunflower
  • Scientific Name: Helianthus silphioides
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: 6-7
  • Flower Color: Yellow rays and reddish-purple
  • Special Characteristics: Attracts birds and butterflies, deer-resistant, showy flowers, cut flowers, easy-to-grow
  • Hardiness Zone(s): 5 to 9
  • Height At Maturity: 3-10’
  • Sun: Full sun
  • Sub Type: Groundcover

Roundleaf Liverleaf (Anemone americana)

Roundleaf Liverleaf_Anemone americana

  • Common Name: Roundleaf Liverleaf
  • Scientific Name: Anemone americana
  • Type: Perennial
  • Water: Needs moderate moisture
  • Soil PH: 6.6 to 7.5
  • Flower Color: Blue to lavender or white
  • Special Characteristics: Showy flowers, easy-to-grow
  • Hardiness Zone(s): 3 to 8
  • Height At Maturity: 6-9″
  • Sun: Part shade
  • Sub Type: Groundcover

Rue (Ruta graveolens)

rue_Ruta graveolens

  • Common Name: Rue
  • Scientific Name: Ruta graveolens
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: 6.6-8.5
  • Flower Color: Dull yellow
  • Special Characteristics: Deer-resistant, showy flowers, easy-to-grow
  • Hardiness Zone(s): 4 to 8
  • Height At Maturity: 24-36′
  • Sun: Full sun
  • Sub Type: Herb

Rue anemone (Thalictrum thalictroides)

rue anemone_Thalictrum thalictroides

  • Common Name: Rue anemone
  • Scientific Name: Thalictrum thalictroides
  • Type: Perennial
  • Water: Needs moderate moisture
  • Soil PH: 6.8-7.0
  • Flower Color: White, pale pink
  • Special Characteristics: Showy flowers
  • Hardiness Zone(s): 4 to 8
  • Height At Maturity: 6-9″
  • Sun: Part shade
  • Sub Type: Groundcover

Russian Arborvitae (Microbiota Decussata)

Russian Arborvitae_Microbiota decussata-part sun to full sun

  • Common Name: Russian Arborvitae
  • Scientific Name: Microbiota Decussata
  • Type: Shrub
  • Water: Moderate
  • Soil PH: 5 to 8
  • Hardiness Zone(s): 3 to 7
  • Height At Maturity: 6″ to 18″
  • Sun: Full Sun to Part Shade
  • Sub Type: Evergreen

Russian sage (Perovskia atriplicifolia)

Russian-sage_Perovskia-atriplicifolia

  • Common Name: Russian sage
  • Scientific Name: Perovskia atriplicifolia
  • Type: Perennial
  • Water: Dry to medium
  • Soil PH: neutral, acidic, alkaline
  • Flower Color: Lavender-purple
  • Special Characteristics: Fragrant, showy flowers, easy-to-grow, container, deer resistant, attracts birds and butterflies, cut flowers
  • Hardiness Zone(s): 5 to 9
  • Height At Maturity: 3′ to 5′
  • Sun: Full sun
  • Sub Type: Herb

Rusty foxglove (Digitalis ferruginea)

rusty foxglove_Digitalis ferruginea

  • Common Name: Rusty foxglove
  • Scientific Name: Digitalis ferruginea
  • Type: Perennial
  • Water: Needs moderate moisture
  • Soil PH: 8-10
  • Flower Color: Creamy yellow to pale golden brown with rusty interior veining
  • Special Characteristics: Attracts hummingbirds, deer-resistant, showy flowers, cut flowers, easy to grow
  • Hardiness Zone(s): 4 to 8
  • Height At Maturity: 36-60″
  • Sun: Part shade

More about the Red Hot Poker attracts bees and butterflies because it produces plenty of nectar. True to its “hot” name, these flowers radiate in full sun and can survive drought and summer heat.

Know more about the perennial flower Red Hot Poker plus all other interesting plants and flowers that start with “R.”

Not a lot of websites thoroughly list plants and flowers alphabetically. However, because we have a database set up, we’re able to offer a comprehensive listing of plants and flowers that you can filter alphabetically.

Be sure to also check out our entire garden directory where you’ll find annuals as well.

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