Looking for a unique flower that starts with the letter R? Check out our list of flowers that start with R, including roses, rhododendrons, and more.
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Roses
Roses are perhaps the most well-known flower in the world. There are many different types of roses, and they come in a wide range of colors, from white to yellow to pink to red to purple. Roses are often given as gifts on special occasions such as Valentines Day, Mothers Day, and anniversaries.
Ranunculus
Ranunculus is a genus of approximately 600 species of plants in the family Ranunculaceae. Members of the genus include the buttercups, spearworts, and water crowfoots. The petals are often highly polished. Flowers may have single or multiple whorls of petals. The gynoecium has usually one carpel. In many species, flowers bloom in early spring, but some flowers blooming late summer to fall
-Ranunculus aconitifolius – Aconite-leaved Buttercup
-Ranunculus ambiquus – Northwestern Crowfoot
-Ranunculus aquatilis var. capillaceus – Threadleaf Water Crowfoot
Radiant Peruvian Lilies
Radiant Peruvian lilies (Alstroemeria aurea) are native to South America but have been widely cultivated in the United States for their large, showy flowers. The 6-inch blooms come in a variety of colors including white, yellow, pink and red and are borne on 2 to 3 foot tall stems. Peruvian lilies are hardy in USDA zones 7 to 10 and do best in full sun to partial shade.
Red Hot Poker
Red hot poker is a perennial that produces long-lasting flowers. The fiery red and orange blooms of this flower add a touch of drama to any garden. Red hot poker is a low-maintenance plant that is drought tolerant and resistant to deer and rabbits. This flower is also know by its botanical name, Kniphofia uvaria.
Red Ginger
Red ginger, with the botanical name Alpinia purpurata, is a species of flowering plant in the ginger family, native to eastern Indonesia (Maluku and West Papua). It grows as a clumping perennial reaching 2–3 m (6.6–9.8 ft) tall, with oblong-lanceolate leaves and terminal inflorescences bearing red bracts and white or pale pink flowers.
Redbud
The redbud is a stunning flower that symbolizes hope and new beginnings. This lovely flower blooms in early spring and can be found in shades of pink, purple, and white. The redbud is part of the pea family and is native to North America.
River Lily
The river lily (Lilium philadelphicum) is a beautiful flower that blooms in mid to late summer. The plant is hardy in zones 4-9 and prefers full sun to partial shade. The flowers are white with yellow centers and have a light, sweet fragrance. The plant grows 2-4 feet tall and produces 6-12 flowers per stem.
Rock Rose
Rock rose (Helianthemum) is a genus of about 60 species of flowering plants in the mallow family, Malvaceae. They are mainly found in the Mediterranean region, but also in central and western Asia, and North America. The flowers have five petals and vary in color from white to pink to yellow. The plant produces a small, hard fruit that is eaten by birds.
Rocket Larkspur
Rocket Larkspur (Delphinium ajacis) is an annual flowering plant in the buttercup family, Ranunculaceae. The plant is also known by the common names Meadow Rue and Garden Larkspur. It is native to Europe, where it is found in open habitats such as meadows, pastures, and roadside verges. The plant has naturalized in many other parts of the world, including North America, where it is considered an invasive weed in some areas.
Rocket Larkspur grows to a height of 60-120 cm (24-48 in). The stems are erect and unbranched, or occasionally branched in the uppermost part. The leaves are Alternate, oblong to lanceolate, 10-20 cm (4-8 in) long and 2-3 cm (0.8-1.2 in) broad, with a toothed or lobed margin. The flowers are borne in racemose inflorescences 10-30 cm (4-12 in) long; each flower has five petals fused at the base into a tube, blue or violet with a white spur at the back; they are pollinated by bees. The fruit is a capsule containing numerous small black seeds.
Rocket Larkspur is cultivated as an ornamental plant for its showy flowers. It is also used as a food plant by the larvae of some Lepidoptera species including Hummingbird Hawk-moth; these feed on the nectar of the flowers and on the leaves of young seedlings.
Rose of Sharon
The Rose of Sharon (Hibiscus syriacus), also known as the Althaea rosea or Althaea officinalis, is a flower in the mallow family. It is native to East Asia and its natural range includes countries such as China, Japan, and Korea. The Rose of Sharon has been introduced to other countries, including the United States, where it is now a common roadside plant.
