Radrazz Knock Out Rose

This bright shrub rose is a workhorse, blooming bright red flowers from early summer through frost. Its foliage is dark-green with purple to burgundy highlights. It can grow in part-shade and is known for its disease resistance.

Rainbow Mix Lewisia

Easily hybridized herbaceous evergreen perennial. Rosettes of spoon- or lance-shaped leaves are waxy green with tints of burgundy. Produces pink to peach flowers from spring to summer. Requires moderately fertile soil and prefers neutral to slightly acidic soils. Named after the explorer Merriwether Lewis of the Lewis and Clark Expedition.

Raspberry Ripple Sun Rose

Low-growing, evergreen, shrubby perennial. Small, silvery green, lance-shaped leaves are downy. Bears profuse red and white striped rose-shaped flowers in late-spring to early-summer. Grows well as a groundcover or in rock gardens. Presents a very stunning show when covered with flowers.

Raspberry Shortcake Dwarf Thornless Raspberry

Summer bearing raspberry. This is a dwarf bush with a rounded form; no staking required. Great for a container or plant in the landscape to spread slightly. Large, sweet berries in mid summer.

Raspberry Spear Upright Crabapple

Deep pink buds open to bright blooms on this very narrow form of crabapple. Dark foliage emerges in late spring to early summer and in fall gains tints of orange amidst bright red fruits. Foliage is clean and disease free. Small red fruits are 1/2" in diameter and persist on the tree through winter.

Ravenna Grass

Very tall upright growing grass. A hardy relative of Pampas grass. The foliage is green and white-ribbed, tinged with purples and oranges in the fall. Produces very attractive purple-tan inflorescences in late-summer, turning to beautiful seed heads often used in dried floral arrangements. Cut back to the ground in late-winter to early-spring. Allow to stand through the winter. Tolerant of wet or dry soils. * This plant does produce seedlings that can grow quickly if not properly managed by spraying or pulling for removal.

Raywood's Weeping Arizona Cypress

An eye-catching weeping cultivar of a native evergreen tree with finely textured silver-blue foliage. Can be staked when young to encourage a narrow, upright shape. Makes an excellent focal point in the landscape and needs little maintenance. This cultivar is derived from a species native to the southwestern U.S., so it is well suited to dry soil and drought.

Real Sunbeam Shasta Daisy

Large, butter-yellow flowers with blunt petals and a classic daisy shape make for a cheerful addition to sunny gardens and cut flower arrangements. This cultivar of a classic perennial boasts disease-resistant mounding foliage and a long bloom time.

Red Carpet Stonecrop

Mat-forming succulent plant with rosettes of fleshy green leaves tinged with bright red. Golden-yellow, star-shaped flower bloom in late-summer. Tolerant of many soil types. Avoid overwatering.

Red Cobweb Hens and Chicks

A slow growing, dense mat of gray-green rosettes that are covered in light cobweb-like hairs. The spring gives the foliage a flush of red, with deep pink flowers following in summer. The unique foliage and habit of these Hens and Chicks will provide interest in rock gardens, containers and in-between path stones. After the mature rosettes bloom, they will die, but the younger rosettes will continue to grow and help fill the area and gaps.

Red Creeping Thyme

Mat forming, aromatic, evergreen perennial with finely hairy, trailing stems. Used as a ground cover, for rock gardens and a great substitute for turf. Blooms clusters of reddish-pink flowers in late spring. Handles some traffic. Not for culinary use. Prefers full sun to part shade.

Red Double Knock Out Rose

Bright red double-petal flowers are a showstopper on this hardy, extremely disease-resistant plant. Flowers are repeat-bloomers, blooming from summer to first frost, followed by red rose hips. Attractive foliage is tinged with burgundy throughout summer and turns purple or deep red in fall. This plant works fantastically as a low hedge or along borders as an accent plant. It prefers regular, deep watering’s and will grow in full sun to partial shade.

Red Dragon Ornamental Hazelnut

The wavy and curled foliage holds onto its burgundy-red color far into the season, but gradually fades to green and then golden yellow in the fall. Once the plant is mature, elongated catkins that are somewhat red in color will swing from the twisted stems in winter.

Red Feathers

An recent introduction from Caucausus, this perenial blooms with deep red feather-like spikes in the spring. It forms a clump of green, linear leaves. Deadheading will promote a fall bloom.

Red Fox Speedwell

Herbaceous perennial with spikes of rose red flowers that bloom in mid to late-spring and make excellent cut flowers. Attractive green foliage grows in compact clumps. Remove dead flowers to promote further blooming.

Red Gold Nectarine

This variety of nectarine produces large, freestone nectarines with yellow flesh and blushed red skin. The fruit is like a peach but without the fuzz and can be eaten fresh or preserved. All nectarines do not require cross pollination. Spring brings abundant bright pink flowers. The leaves are mid green and lance-shaped. Fall weather turns the leaves a bright yellow before they fall. Though not a large tree, it will produce fruit abundantly. Thin out the fruit in late-spring to keep the tree healthy and to produce large fruit.

Red Heart Rose of Sharon

Vigorous, multi-stemmed, upright, deciduous flowering shrub. Numerous showy, pure-white, 5-petaled flowers with dark red eyes are borne throughout the summer. Attractive 3-lobed, coarsely toothed leaves grow on erect stems. Tolerant of heat, drought, and poor soils. Prefers fertile soils with moderate amounts of water.

Red Horsechestnut

Medium to tall pyramidal deciduous tree growing more rounded with age. Large panicles of dark pink to red flowers bloom in spring and are very showy. Coarse, mid to dark-green leaves are compound with 5 to 7 leaflets. Prefers acidic to slightly alkaline soils. Bark is susceptible to scorch and lower branches should not be pruned. Will not tolerate extreme drought.

Red Lake Currant

Compact, mounding shrub grown primarily for fruit production. Yellow-green flowers are not very ornamental but lead to bright red fruit that ripen in July. The tart berries may be eaten raw or used in jams, jellies, and pies. Requires regular watering and fertile soil to promote berry growth.

Red Magic Daylily

A consistent display of burnt red blossoms with bright yellow throats that drip a thin strip of color down the middle of each petal. The flowers sit on bare stems. Each blossom lasts for a single day, but new blooms appear all summer long as is normal to the daylily family. The foliage is linear, long, and blade-like, gracefully arching up and over towards the ground.

Red Mountain Flame Ice Plant

This low growing, dense mat of evergreen foliage will give a landscape a burst of colorful flames. The scarlet-orange blossoms begin mid-spring and continue to show off through late summer. The winter months will turn the leaves an appealing bronze color.

Red October Big Bluestem

This upright, clump forming, ornamental grass offers a display of various colors throughout the year. New spring foliage comes in a deep green color with dark red accents. It remains an attractive green color through much of the summer before turning a dark burgundy color in the late summer and finally changing to a scarlet red after the first frost. Spires of airy burgundy blossoms shoot out of the foliage in late summer.

Red Rocks Penstemon

A beautiful hybrid penstemon with constantly blooming small, rose-pink flowers throughout the summer. Narrow, lance-shaped, bright-green foliage is semi-evergreen. Prefers full sun and moist, well-drained soil. Attracts hummingbirds and butterflies and is deer resistant.

Red Switch Grass

Clump-forming ornamental grass with excellent fall color. Long slender green leaves turn bright red in the autumn, fading to tan in the winter. Panicles of airy seedheads bloom in mid-summer and are tinged with pink. Provides interest if left through the winter. Cut back in early-spring before new foliage appears. Tolerates alkaline soils and some drought. The species is native from Utah to the east coast.

Red Wiggle Stonecrop

This drought tolerant groundcover looks like a vibrant, flowing coral reef. The feathery, needle-like foliage is full of rich burgundy-reds and green growing tips. There are occasional yellow blossoms, but they are insignificant compared to the colorful foliage. Fall will turn the succulent leaves a solid red.

Red Yucca

Clump-forming succulent native to Texas and Mexico. Not actually a yucca although it resembles one. Slender blue-green leaves grow basally. Long stalks above the plant produce bright red flowers. May not be reliably cold hardy during cold winters. Planting should occur in the spring to increase its resistance to the first winter.

Red-Leafed Mukdenia

A compact semi-evergreen perennial with fanning, lobed green leaves. In early spring, clusters of small white to pale pink flowers sit closely above the mounds of foliage. By summertime, the leaves develop bright red streaks along the margins, providing interest even when flowers aren't blooming. Striking in mass plantings, it will gradually spread and naturalize in ideal conditions.

Redberry Mahonia

Large slow-growing evergreen shrub native to the southwestern United States. Bluish-green holly-like leaves are quite spiny. Spring brings profuse, small yellow flowers followed by bright red berries in late summer to fall. Berries are edible though sour. Will take some time to reach its maximum height. Best used as a barrier or screen.

Redbirds in a Tree

The flowers of this penstemon cousin resemble red birds sitting in a tree. The crimson, tubular flowers bloom on spires of serrated green foliage. It's very adaptable to garden settings and doesn't need a lot of water to thrive.

Regal Petticoat Sycamore Maple

A medium sized shade tree with lobed, burgundy leaves. Summer turns the tops of the leaves a dark, glossy green with burgundy undersides. The leaves turn yellow in autumn. It is known for its hardiness and tolerance of salt and city pollution.

Regent Japanese Pagodatree

Oval to rounded deciduous tree native to China and Korea. Dark green leaves are pinnate (made up of smaller leaflets). Fragrant greenish-white flowers appear in mid-summer followed by seed pods. This variety blooms earlier than the species and grows faster. Requires pruning to develop correct structure. Seed pods can cause significant litter. Very tolerant of poor soils, drought, salt, heat, and pollution.

Repanda Common Juniper

Low-growing, spreading evergreen shrub. Coarse textured medium-green leaves are very narrow and pointed with white bands. Produces green berries that turn blue or black at maturity. This is a variety of one of the junipers native to Northern America including Utah. Requires very little water once established. Tolerates poor soils. Foliage has a different texture than other junipers giving it a unique look.

Reticulated Iris

Small iris with blue to purple flowers with golden yellow stripe on the throat. Leaves are small and grass-like. Blooms in early-spring.

Rhodanthe Carneum Sun Rose

Low-growing evergreen shrub. Small, silvery green, lance-shaped leaves are downy. Bears profuse pale pink rose-shaped flowers in late-spring to early-summer. Grows well as a groundcover or in rock gardens. Presents a very stunning show when covered with flowers.

Rhubarb

Clump-forming perennial vegetable. Grown for its edible reddish leaf stalks which are used in pies and jams. Large beautiful dark-green leaves are highly toxic and should not be ingested or used in cooking. Grows best in slightly acidic soils with consistent watering. Remove flower/seed heads before growth to promote healthier leaf stalks.

Rising Sun Redbud

A medium height, compact sized, deciduous tree with large heart shaped foliage. The leaves are bright orange-peach when they emerge and then turn lime green and green as they mature. New leaves emerge all summer, so there’s always a mix of colors on the tree. Fall foliage is yellow and orange. In spring small, showy vivid pink flower emerged attracting bees and butterflies. Heat tolerance, drought resistance and cold hardiness are other desirable attributes. Wide tolerance of various soil types and moisture.

Rock Candy Pink Penstemon

Rock Candy Pink Penstemon is a neat and compact clump of green foliage. The late spring brings a heavy bloom of vibrant pink, bell-shaped flowers covering upright stems. If lightly trimmed after this first flush, another round of striking color can be enjoyed in late summer.

Rock Candy Purple Penstemon

Rock Candy Purple Penstemon is a neat and compact clump of green foliage. The late spring brings a heavy bloom of deep purple, bell-shaped flowers with white throats covering upright stems. If lightly trimmed after this first flush, another round of striking color can be enjoyed in late summer.

Rock Jasmine

This herbaceous perennial creates a low mat of individual foliage rosettes. During the summer, stems rise above the foliage with clusters of purple-pink blossoms on top. Rock Jasmine can thrive in tiny spaces, such as in between rocks in a crevice garden.

Rockin' Robin Shrub Rose

Medium to small ornamental shrub. Large blooms appear in spring and last into early summer. Flowers are stunningly striped with red and white. Shiny dark-green leaves are very pretty and hold their own even when not in bloom. Grow in fertile soil with moderate amounts of water.

Rocky Mountain Columbine

The state flower of Colorado. Gorgeous purple-blue and white flowers make it a must-have in high elevation gardens. It's leaves are deeply lobed and mid-green. In lower elevations, keep this perennial in shade and provide moderate amounts of water.

Rocky Mountain Glow Maple

A small to medium deciduous tree with attractive fall color varying from red to yellow depending on the climate. Rocky Mountain Glow is a beautiful cultivar of the native Bigtooth Maple, a relative of the eastern species Sugar Maple. This cultivar is grafted to Sugar Maple rootstock, making it less adapted to Utah's alkaline soils compared to Bigtooth Maples grown on their own rootstock. Requires occasional deep soaking to keep healthy. Subject to winter sunscald on bark and some chlorosis.

Rocky Mountain Juniper

Slow-growing evergreen tree with a narrow pyramidal habit. Native to the western United States. Has scale-like needles with attractive blue-green foliage. Prefers to grow as a multi-stemmed tree, but can be trained with a single stem. Reddish-brown bark peels off in long strips. Requires full sun and will tolerate alkaline soils and drought.

Rocky Mountain Maple

Small, multi-stemmed, deciduous tree native to the western United States. Coarsely toothed 5-lobed leaves turn yellow, orange, or red in the fall. Miniscule green flowers give way to winged seeds. Red branches and stems provide winter interest. Tolerant of a wide range of soils. Tolerant of drought once established.

Rocky Mountain Penstemon

Beautiful, spring blooming perennial native to the western United States. Grows from a basal rosette with spoon shaped leaves. Upright stems bear lance-shaped leaves. Bears tall spikes of abundant blue to purple flowers in late spring to early summer. Attractive foliage holds its own when out of bloom. Very drought tolerant. Needs well-drained soils.

Rondo Penstemon

Semi-evergreen perennial growing from a basal rosette of spoon-shaped leaves. Upright stalks bear lance-shaped linear leaves topped with spikes of flowers during mid-summer. Flower color is variable resulting in a beautiful mix of pinks, blues, and purples. Requires little to no additional water once established. Grow in well-drained soil.

Rose Glow Japanese Barberry

Densley growing deciduous shrub with many sharp thorns. Foliage is rosy-pink with splotches of bronze and purple. Inconspicuous yellow flowers emerge in the spring followed by bright red fruit that is often retained until winter. Tolerant of drought, pollution and most soils.

Rose Marie Magnolia

This magnolia hybrid blooms later and longer than most. Early spring buds open to bright-pink, fragrant blooms. The green, large ovate foliage can be enjoyed after the flowers have fallen.

Rose Queen Sage

Clump-forming perennial. Plume-like spikes of rosy-pink flowers bloom in spring and may continue intermittently through the summer. Remove spent blooms to promote more flowering. Lance-shaped, green leaves are aromatic. Attracts bees and butterflies. Plant in well-drained soils. Tolerates heat and drought.

Rosyjane Wand Flower

This herbaceous perennial is a long bloomer. Throughout the summer months delicate, white flowers edged in pink bloom on tall, thin stems creating a wispy, airy look. Butterflies will enjoy the blossoms as well. ‘Rosyjane’ has a slightly more compact habit compared to other Gaura plants. In cooler climates, the leaves can develop hints of red.

Royal Catchfly

Native to the Great Plains areas of North America. One of the tallest of the catchflies, this species has bright red flowers about one inch across that appear during the summer months. Due to the narrow width of these plants, they should be planted close together or intermixed in a garden to add sparkle.

Royal Purple Smoketree

Small tree or large shrub growing to 15' tall. Oval leaves are dark-red to purple throughout the summer turning scarlet red in autumn. Produces plume-like panicles of red to purple flowers that resemble clouds of smoke around the tree. May grow irregularly and grows best if planted in full sun. Tolerant of drought once established.

Royal Raindrops Crabapple

This crabapple cultivar was bred for its upright form, strong branching, disease resistance and attractive purple, deeply-lobed leaves. Bright pink flowers bloom in the spring leading to small red fruit that's persistent, meaning it stays on the tree. Crabapples are good trees for Utah's climate but need adequate water and care to be happy.

Royal Red Butterfly Bush

Beautiful medium to large shrub flowering shrub. Can be pruned back to desired height each year, even to the ground if desired. Once established, this plant is tolerant of many conditions. Attracts butterflies and bees. One of the most popular varieties. Produces magenta-purple blooms on 20" panicles.

Royal Ruby Hens and Chicks

Low-growing perennial succulent with rosettes of thick burgundy or gray-red leaves. After blooming pink in summer, the rosettes will die but are replaced by new offset rosettes. Plants require excellent drainage and little water. Avoid excessively wet winter soil. Great choice for rock gardens, crevices, or well-drained pots.

Royal Standard Red-Hot Poker

Upright-growing, clump-forming perennial with multi-colored flowers growing on tall stems. Bright red flowers emerge in spring and mature to yellow, eventually creating a two-toned effect. Bluish green leaves are long and linear. Grows well with moderate to low amounts of water.

Royalty Crabapple

Small flowering tree with a somewhat spreading habit. Red-purple blossoms appear in spring leading to dark red fruit. New leaves are purple-red but fade slightly during summer turning reddish-orange in fall. The fruit of crabapples are edible and are often used in jellies but not pleasant eaten fresh. Great as an accent plant.

Rozanne Cranesbill

This Geranium is a lush, low-growing mound of deep green, slightly marbled foliage. It has delicate, violet-blue, five-petalled flowers with purple veins and white centers, that bloom throughout summer with a smaller flush of colorful flowers in fall.

Rubber Rabbitbrush

A noteworthy native deciduous shrub common throughout the Salt Lake Valley. Aromatic gray-green leaves grow on whitish-green stems. In late summer, thick clusters of glowing, golden, buttery-scented flowers emerge, attracting a wide variety of bees and other pollinators. Requires no additional watering once established due to deep roots, reflective leaves and general adaptation to our region. Tolerates many soil types. Pruning will keep it looking tidy in the residential landscape.

Ruby Dayze Crabapple

The Ruby Dayze Crabapple can offer nearly year-round interest. Its upright, tightly oval form brings on purple red foliage that matures to bronze-green and eventually turns an orange red in fall. Spring brings vibrant magenta pink blossoms. Deep red clusters of fruit come on in the fall and hold on into winter.

Ruby Falls Redbud

This weeping variety of Eastern redbud has heart-shaped leaves that emerge a deep purple. The leaves fade to dark green with purple hues in the summer and turn mixed shades of burgundy, orange and gold in the fall. Bright pink flowers appear in early spring before the leaves. It is marginally hardy and should be planted in a protected area.

Ruby Mantle Stonecrop

Mat-forming, evergreen perennial. Toothed, red-tinted, green leaves grow on vigorously growing stems. Late summer brings rounded corymbs of pink flowers. Plant in well-drained soils. Prefers moderate amounts of water but may tolerate some drought. Flowers best in full sun.

Ruby Slippers Oakleaf Hydrangea

A compact perennial shrub with oak-like, deep green foliage that evolves into a woody red in fall. Abundant summer blooms emerge in snowy white and mature to shades of antique pink and red. These conical blossoms are elegant yet hardy and will stay upright rain or shine.

Ruby Star Coneflower

Showy summer-flowering perennial with purple to magenta flowers. In addition to the unique coloring, the petals of this variety do not droop as do the other coneflowers. Deadheading will promote additional flowering. Fairly drought tolerant and excellent as a cut flower.

Rue

Rounded, bushy, evergreen perennial. Blue-green, highly aromatic, deeply lobed leaves grow on erect stems. Clusters of cup-shaped yellow flowers are borne in summer. The leaves, especially fresh leaves, have many herbal uses. Tolerates hot and dry sites. Plant in well-drained, moderately fertile soils.

Russell Hybrids Lupine

Upright perennial with medium green, palmately-compound leaves. Bears beautiful spikes of multi-colored pea-like flowers in early summer ranging from purple, red, yellow, and white. Grows in full sun to part shade with regular to moderate watering.

Russian Sage

Upright-growing perennial or subshrub. Deeply cut grey-green aromatic leaves grow on tiered branches. Small, tubular, lavender-blue flowers appear in late-summer and are the best feature of this plant. Looks best when cut down to the ground each year. Plant in well-drained soils in a spot with plenty of room to grow.