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20+ Flowers that Start with R to Refresh your Garden!

20+ Flowers that Start with R to Refresh your Garden!

Are you searching for unique and captivating flowers to refresh your garden? Get ready to discover 20+ extraordinary choices of flowers that start with "R"!

Tired of the same old flowers in your garden? Does your garden need a dose of dazzling color and unique charm? It's time to inject some excitement and discover the diverse beauty of flowers that start with R! From the classic elegance of roses to the whimsical charm of rain lilies, there's a whole world of stunning flowers that start with "R" waiting to be discovered. 

Get ready to be amazed and inspired as we uncover more than 20 captivating flowers that start with "R" – each one ready to add its own special magic to your garden!

You might also like: 20+ Lovely Flowers Starting with L: Explore These Luminous Bloom

R for Radiant Flowers that Start with R

Ready to dive into this vibrant collection of "R" flowers? Let's journey through a floral wonderland, where captivating colors and unique shapes await. From cheerful classics to exotic surprises, get ready to discover the perfect blooms to add a touch of magic to your garden! Here are over 20 flowers that start with "R," ready to inspire your next gardening adventure:

1. Roses

Flower that Starts with R

Roses are undeniably the queens of the summer flower world. Renowned for their beauty and fragrance, they come in a staggering variety of colors, shapes, and sizes. From classic deep reds and soft pinks to more unusual blues and oranges, there's a rose to suit every taste. Their blooms can be single, double, or multi-petaled, adding a touch of elegance and romance to any garden or floral arrangement.

Blooming season: Most roses bloom repeatedly throughout the summer, starting from late spring or early June and continuing until the first frost arrives in fall, typically around October or November.

Growing conditions: Roses thrive in full sun (at least 6 hours a day) and well-drained soil. They benefit from regular watering, especially during hot, dry periods. Deadheading (removing spent blooms) encourages continuous flowering throughout the season.

2. Ranunculus 

Flower that Starts with R

Also known as Asian buttercups, ranunculus boast a vibrant and cheerful presence in the summer garden. These captivating flowers feature multiple layers of tissue-paper-like petals that unfurl from a central bud, creating a beautiful, rose-shaped bloom. They come in a delightful spectrum of colors, including yellow, orange, pink, red, purple, and white, sometimes even with bi-colored variations.

Blooming season: Ranunculus typically bloom in late spring to early summer, from around May to June. However, with proper care, they may sometimes rebloom later in the season.

Growing conditions: Ranunculus prefer cool weather and well-draining soil. They do well in full sun to partial shade. Keep the soil consistently moist but not waterlogged. Ranunculus are popular as cut flowers due to their long vase life.

3. Rudbeckia (Black-Eyed Susan)

Flower that Starts with R

Rudbeckias, often known as Black-Eyed Susans, are cheerful daisy-like perennials that bring a burst of sunshine to the summer garden. Their bright yellow ray petals encircle a prominent dark brown or black center, creating a striking contrast. Rudbeckias come in a variety of sizes, from dwarf varieties reaching about 1 foot (30 cm) tall to taller types growing up to 6 feet (1.8 m) in height.

Blooming season: These summer stars bloom profusely from mid-summer until the first frost, typically from June to October.

Growing conditions: Rudbeckias are low-maintenance flowers that thrive in full sun and well-drained soil. They are quite drought-tolerant once established but appreciate occasional watering during hot, dry spells. Deadheading spent blooms encourages continuous flowering throughout the season.

4. Rose Mallow

Flower that Starts with R

Rose mallows, also known as hibiscus, are stunning summer flowering plants that add a touch of the tropics to your garden. They boast large, showy flowers in shades of pink, red, white, or even bi-colored combinations. The blooms resemble those of hibiscus plants, with broad, ruffled petals and a central column of stamens. Rose mallows can grow quite tall, reaching heights of 6 to 8 feet (1.8 to 2.4 m) and provide a beautiful focal point in the garden border.

Blooming season: These impressive flowers enjoy the warmth of summer and typically bloom from mid-summer to early fall, from June to September.

Growing conditions: Rose mallows prefer full sun and moist, well-drained soil. They benefit from regular watering, especially during hot, dry periods. Deadheading spent blooms promotes continued flower production throughout the season.

5. Rhododendron

Flower that Starts with R

These shrubs (and occasionally small trees) produce gorgeous clusters of bell-shaped flowers in the spring and summer months. Their blooms come in a dazzling array of shades: red, pink, purple, white, yellow, and orange. Many varieties exude a delightful floral fragrance. 

Blooming Season: Rhododendron blooming seasons vary depending on the specific variety and local climate. Generally, most rhododendrons bloom sometime between spring and mid-summer.

Growing Conditions: Rhododendrons thrive in dappled or partial shade. They prefer acidic, well-drained soil and consistent watering to stay happy.

6. Romneya (Matilija Poppy)

Flower that Starts with R

Sometimes called the "tree poppy," this California native produces large, papery white flowers with a bright yellow center that have a slightly crinkled appearance. They have a delicate, sweet fragrance. 

Blooming Season: Romneya typically blooms from late spring to early summer. In warmer regions or with extended warm weather, they can sometimes bloom into late summer as well.

Growing Conditions: Romneya likes full sun and well-draining soil. It's incredibly drought-tolerant once established, making it a great option for hot, dry climates.

7. Russian Sage (Perovskia atriplicifolia)

Flower that Starts with R

Though its blossoms are tiny, Russian sage creates a beautiful haze of silver-blue thanks to its delicate foliage and masses of flowers throughout its late-summer bloom period. Bees and pollinators absolutely adore Russian sage. 

Blooming Season: Russian sage blooms from June and can last until October or November. Expect it to flower from mid-summer all the way into fall, until the first frost arrives.

Growing Conditions: Russian sage needs full sun and dry, well-draining soil to flourish. This hardy plant is incredibly tolerant of heat and drought.

8. Red Hot Poker (Kniphofia)

Flower that Starts with R

This striking perennial features tall, dense spikes packed with tubular flowers that bloom from the bottom up. The flower colors typically range from warm yellow to red-orange, creating a fiery display in the garden. 

Blooming Season: Red hot poker usually blooms mid-summer or late summer, depending on the variety.

Growing Conditions: These plants thrive in full sun and well-drained soil. They tolerate drought reasonably well once established.

9. Ratibida (Prairie Coneflower)

Flower that Starts with R

A close relative of Rudbeckia, Ratibida boasts a unique appearance. This native North American wildflower features drooping yellow or orange ray petals and a tall, elongated brown central cone, giving it a whimsical feel. 

Blooming Season: Prairie coneflowers enjoy a long blooming season from early summer through early fall.

Growing Conditions: Ratibida is tough and adaptable, thriving in full sun and a variety of soil types. Its drought tolerance makes it excellent for low-maintenance gardens.

10. Rain Lily (Zephyranthes)

Flower that Starts with R

These delightful little flowers pop up with surprising speed after summer rains (hence their name). The blooms come in shades of white, pink, or yellow and have a star-like shape. 

Blooming Season: Rain lilies tend to bloom intermittently throughout the summer and into the fall months, often triggered by periods of rainfall.

Growing Conditions: Rain lilies thrive in heat and humidity. They prefer full sun and moderately fertile, well-draining soil. These charming bulbs are relatively low-maintenance.

11. Rocktrumpet (Mandevilla)

Flower that Starts with R

This tropical vine produces large, trumpet-shaped flowers in vibrant pinks, reds, yellows, and whites. They often have a delightful, sweet fragrance. 

Blooming Season: Rocktrumpet blooms prolifically throughout the summer and often into the fall in warmer climates.

Growing Conditions: This sun-loving vine thrives in full sun and enjoys warm temperatures. Provide a trellis or support structure for it to climb. It's generally not frost-hardy, so it's often grown as an annual in cooler areas.

12. Rugosa Rose

Flower that Starts with R

This species of rose is renowned for its toughness and adaptability. They have crinkled leaves, masses of fragrant flowers in typical rose colors like pinks and reds, and develop large, edible rose hips in the fall. 

Blooming Season: Rugosa roses tend to boom repeatedly throughout the summer into early fall.

Growing Conditions: Adaptable to various soil types and tolerant of partial shade, Rugosa roses are relatively easy to care for. They are exceptionally cold-hardy as well.

13. Rothmannia

Flower that Starts with R

This tropical shrub or small tree boasts large, fragrant, trumpet-shaped flowers that are usually white or cream-colored with maroon markings in the throat. The blooms offer a sweet, gardenia-like fragrance.

Blooming Season: Rothmannia species and varieties generally bloom during the warmer months. Depending on the specific variety and climate, expect these fragrant beauties to flower sometime between spring and fall.

Growing Conditions: Rothmannia thrives in warm, humid climates with full sun to partial shade. It prefers moist, well-draining soil. It's generally not suitable for areas with freezing temperatures.

14. Rattail Cactus (Disocactus flagelliformis)

Flower that Starts with R

This quirky cactus gets its name from its long, thin, trailing stems. In the summer, it produces an abundance of vibrant pink flowers that are truly eye-catching.

Blooming Season: Rattail cactus typically bloom in the spring and early summer. 

Growing Conditions: As a cactus, the rattail requires full sun and well-draining soil. Allow the soil to dry out between waterings.

15. Ruellia (Mexican Petunia)

Flower that Starts with R

This tough and adaptable flowering perennial produces masses of cheerful, trumpet-shaped flowers throughout the warmer months. The blooms come in shades of pink, purple, blue, or white, attracting butterflies and hummingbirds to your garden.

Blooming Season: Ruellia blooms for an extended period from spring to fall.

Growing Conditions: Mexican petunia flourishes in full sun to partial shade and tolerates a range of soil conditions. They are generally drought-tolerant and low maintenance.

16. Red Valerian (Centranthus Ruber)

Flower that Starts with R

This vibrant perennial features clusters of tiny, star-shaped flowers in shades of red, pink, or white. Its long flowering season and ability to attract butterflies make it a popular choice for cottage-style gardens. 

Blooming Season: Red valerian has a long blooming season, starting in late spring and often continuing through summer and early fall.

Growing Conditions: This adaptable plant thrives in full sun and average to well-drained soil. It even tolerates some drought and salt spray.

17. Rock Rose (Cistus)

Flower that Starts with R

This low-growing, evergreen shrub offers delicate, tissue-paper-like flowers that resemble small wild roses. The blooms come in various shades of white, pink, and purple, often with contrasting centers.

Blooming Season: Most Rock Roses bloom in late spring and early summer.

Growing Conditions: These sun-loving shrubs prefer hot and dry conditions with well-drained soil. They are a good choice for areas with a Mediterranean climate.

18. Romulea

Flower that Starts with R

These charming, colorful bulb plants bring a touch of whimsy to the garden with their slender leaves and beautiful flowers. Romulea come in shades of purple, pink, yellow, white, and even bi-colored combinations, resembling delicate crocuses. They're perfect for borders, rock gardens, or even containers. 

Blooming Season: Romulea typically blooms in spring and early summer.

Growing Conditions: Prefers full sun and well-draining soil.

19. Russell Lupine

Flower that Starts with R

These showy perennials produce tall, majestic spires of dense flowers in vibrant colors like blue, purple, red, pink, yellow, and white. They add beautiful vertical interest to the garden and attract a variety of pollinators. 

Blooming Season: Russell lupines primarily bloom in late spring to early summer.

Growing Conditions: These sun-lovers prefer well-drained soil and can tolerate slightly cooler temperatures.

20. Rubus (Raspberries, Blackberries, and their relatives)

Flower that Starts with R

While we generally think of these plants for their delicious fruit, many Rubus species produce pretty flowers! White or pink blossoms often appear before the berries develop, attracting bees and other pollinators.

Blooming Season: Most Rubus bloom in the spring or early summer before the fruiting season begins.

Growing Conditions: The specific growing conditions vary depending on the Rubus species. Generally, they prefer full sun and well-draining soil with moderate amounts of water.

21. Rock Purslane (Calandrinia)

Flower that Starts with R

A low-growing succulent with fleshy leaves, rock purslane produces vibrant magenta flowers that resemble tiny roses. The blooms open in the morning and close in the late afternoon. 

Blooming Season: Rock purslane typically blooms from spring through summer.

Growing Conditions: It's perfect for hot, dry climates, thriving in full sun and well-draining, sandy soil.

22. Rangoon Creeper (Quisqualis indica)

Flower that Starts with R

This vigorous tropical vine boasts a dazzling display of fragrant flowers that transform in color as they age. The blooms start white, fade to pink, and finally mature to a rich red. Its sweet scent is especially noticeable during the evening hours. 

Blooming Season: Rangoon Creeper is a long bloomer, often flowering from spring through fall in ideal climates.

Growing Conditions: This vine thrives in warm, humid climates with full sun exposure. Provide support for its climbing growth. It's not suitable for areas with frost.

23. Redbud Tree (Cercis)

Flower that Starts with R

This small to medium-sized tree is a spring spectacle! Masses of tiny, pea-shaped flowers in vibrant shades of pink or purple cover its bare branches before its leaves emerge. It's a beautiful and beloved choice for adding spring color to the landscape. 

Blooming season: Redbud's dazzling display typically occurs in early to mid-spring.

Growing Conditions: Redbuds enjoy full sun to partial shade and prefer well-drained soil. They adapt to various growing conditions.


Now that you've explored the wonders of flowers that start with R, it's time to let your gardening creativity blossom! Don't be afraid to mix and match these beauties. Your garden is your canvas, so paint it with vibrant hues, intoxicating scents, and a symphony of textures. Let these remarkable flowers that start with R ignite your imagination and refresh your garden with their captivating spirit!