Missouri Botanic Gardens Plants of Merit

Large clusters of fiery orange-red tubular flowers are produced from summer through fall to yearround in warm tropical climates and attract butterflies and hummingbirds. Clusters of shiny black 3/8" fruit develop on pollinated flowers and are utilized by songbirds. When grown in full to mostly sunny conditions the foliage generally has a reddish tinge. The Firebush, Hamelia patens var. patens, is native to the southern half of Florida and is evergreen under frost free conditions and can develop into a medium to large shrub. *We have grown this species in our zone 8B gardens for over 30 years as a quite reliable 3-4' high die-back perennial. Each winter it freezes back to its crown and then returns in mid to late spring to flower through much of summer and into fall. Provide a full to mostly sunny site, although they are fairly tolerant, for optimum vigor and flowering. Item# 10668

Large 8-9" wide glowing deep red flowers are held against the dark burgundy maple-like foliage of this hardy Hibiscus. Midnight Marvel Perennial Hibiscus is a show stopper that absolutely pops in the summer and early fall landscape! Another excellent Walter's Gardens introduction, this hardy Hibiscus is sure to make a statement whether in the garden and landscape or all on its own. Like some of the other Walter's Gardens Hibiscus introduction, Midnight Marvel flowers all the way from the top to the bottom of these naturally rounded plants. Provide full to mostly sun and a moderately rich moist soil. Caterpillar host: Gray hairstreak. Item# 11420

Masses of 1" wide yellow-eyed bluish purple daisies absolutely cover this plant for weeks in late summer and fall. October Skies Aromatic Aster, a selection of Symphyotrichum oblongifolium, is a low mounding perennial that develops into a compact shrub-like plant by flowering time. Excellent fall color for the garden as well as drought tolerance and pest and disease resistance make this an excellent addition to the perennial or wildflower border and landscape. Prefers good to excellent drainage and a full to mostly sunny site. Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Item# 9913

A 2020 Missouri Botanic Gardens Plant of Merit selection! 3-5" wide light pale pink to purplish pink coneflowers with drooping petals are held well above the rosette of narrow foliage on sturdy stems. Flowering normally occurs in late spring and summer and the nectar rich disk flowers attract bees, butterflies, and other pollinators. The Pale Purple Coneflower, Echinacea pallida, closely resembles the Sanguin Purple Coneflower, E. sanguinea, and like its cousin it is a taprooted, clump-forming perennial found mainly in the central US in meadows, glades, and other open areas. Its clump forming habit lends it to use in the garden and landscape as well as in naturalistic settings. Provide a full to mostly sunny site in a well-drained soil for optimum vigor and flowering. Item# 12392

3-5" green-yellow fruit with banana custard-like flavor, some say they are best after being frozen. Produces fragrant purple flowers in spring. A small native, normally understory tree, and is the caterpillar host plant of the Zebra Swallowtail Butterfly. Seedling grown. Plant two different varieties or seedlings for pollination. Item# 786.

The large 2" deep bluish-purple trumpets are born freely from summer to fall on upright to arching burgundy stems with deep bronzy green glossy foliage. Purple Showers Mexican Petunia is sterile and so it can spend more energy on an endless supply of beautiful purple trumpets instead of adding unwanted seedlings to the garden. This wonderful and vigorous selection produces larger flowers and foliage than other Mexican Petunias. Item# 9610.

Masses of 1" wide yellow-eyed bluish purple daisies absolutely cover this plant for weeks in late summer and fall. Raydon's Favorite Aromatic Aster, a selection of Symphyotrichum oblongifolium and the big brother of the slightly more compact October Skies, is a medium-sized, herbaceous, densely mounding shrub-like perennial that matures to about 3' x 3' at the time of flowering. Excellent fall color for the garden as well as drought tolerance and pest and disease resistance make this an excellent addition to the perennial or wildflower border and landscape. The flowers attract a variety of pollinators but seems to be especially popular with bees. Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Prefers good to excellent drainage and a full to mostly sunny site for optimum vigor and flowering. Named the 2016 Plant of the Year by the Garden Club of America and selected for the 2003 Theodore Klein Award. Images courtesy of North Creek Nurseries, Inc., all rights reserved. Item# 13164

The show starts in early summer and may last nearly until the first frost with this reliable and fragrant Garden Phlox. It produces large domed clusters of bright purplish pink flowers on tall sturdy stems with mildew resistant, deep green foliage. Phlox is adored by butterflies and hummingbirds alike! Robert Poore is one of only a handful of Garden Phlox cultivars recommended for southern gardens by noted Texas plantsman Greg Grant. Item# 10161

Vibrant yellow and red flowers are borne from Spring to frost on an upright to spreading perennial. Raise Monarch Butterflies in your own backyard! The Monarchs migrate through our area just as the Asclepias begin to awaken in spring, just in time for the females to lay their eggs on the new growth. Caterpillar host: Queen and Monarch. Item # 3078.

Solid yellow blooms are borne from spring to fall on this vigorous and fast growing upright perennial. Raise Monarch Butterflies in your own backyard! The Monarchs migrate through our area just as the Asclepias begin to awaken in spring, just in time for the females to lay their eggs on the new growth. Caterpillar host: Queen and Monarch. item # 643.

Large conical white flower clusters composed of numerous sterile florets are held atop strong sturdy stems with the flower show beginning in late spring to early summer. Flowers take on pink tones as they age. Snow Queen Oakleaf Hydrangea has sturdier stems than Alice with a more compact, denser, naturally rounded habit. This is a selection of our native Hydrangea quercifolia that offers the showy peeling cinnamon colored winter bark and purple, red and burgundy fall foliage typical of the species. Snow Queen has proven to be hardy into zone 5. Provide a well-drained, average moist, fertile, acidic soil and although they are tolerant of full sun they flower well even in fairly dense shade. The Oakleaf Hydrangea will have the most intense fall foliage coloration where the plants receive at least 4-6 hours of direct sunlight. An organic mulch, especially important under full sun conditions in areas with hot summer climates, will to help alleviate moisture stress during dry periods among its numerous other benefits. Item# 12577

Beautiful yellow tubular blooms are born from spring to fall. Attracts hummingbirds and butterflies make this a lovely vine for fence, arbor or trellis. Caterpillar host: Chalcedon Checkerspot. It is evergreen and vigorous, but easy to control. Item # 1075.

2022 Missouri Botanic Garden Plants of Merit selection! The pinnacle of Hardy Hibiscus breeding in traffic stopping form! The summerlong display of huge 8-9" wide, textured, dark red flowers are set against a foil of deep dark maroonish-purple near black foliage all on a heavy flowering well-branched plant. SUMMERIFIC® Holy Grail Perennial or Hardy Hibiscus is a vigorous clump-forming perennial that develops into a full, but compact well-branched plant with exceptional flower power. Like most other Walter's Gardens introductions, SUMMERIFIC® Holy Grail is an indeterminate plant producing flowers from the top to the bottom of the plants creating an amazing summer into fall display in the garden and landscape. Provide a full to mostly sunny location in moist to average moist to wet, moderately fertile soils.Caterpillar host: Gray hairstreak. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 12498

A show stopper! Tangerine Beauty Cross Vine produces a huge mass of 2" orange trumpets with yellow throats in late spring with some blooms throughout summer on well-established vines. An easily grown and vigorous clinging native evergreen vine that can easily grow up masonry, tree bark, or other structures without support.Cross Vines are a low maintenance choice for fences, posts, and large trellises. The trumpet shaped flowers attract hummingbirds, bees and other pollinators. The unusual compound, glossy, dark green foliage takes on orange, red, bronze, and purple tones when grown in full sun during fall and winter.  Item# 12029

Clusters of soft yellow-orange tubular buds mature into medium orange tubular trumpet-shaped flowers that darken as they age. Flowering begins in late winter to early spring and continues cyclically throughout the growing season and finishing up in fall at the end of hummingbird season. Tangerine Princess Coral Honeysuckle, a Louisiana selection of Lonicera sempervirens, is a native, twining, deciduous, woody vine that is one of the longest flowering vines for attracting hummingbirds. The mother plant was discovered during a tour of the Dr. Charles Allen Nature Preserve in northern Louisiana with its namesake noted botanist, author, and retired professor Dr. Charles Allen, Ken and Sonie Milton, etal. Coral or Trumpet Honeysuckle will happily twine through a 6' high chain link fence or up an 8' arbor, trellis, or post. Caterpillar host: Chalcedon Checkerspot. Provide a full to mostly sunny site in an average moist, fertile, well-drained soil for optimum vigor and flowering. 1/4" red berries follow flowering and are a treat for songbirds. Item# 957

Yellow trumpet shaped flowers are heavily accented by deep brick red in the throat and are produced in mass in spring to early summer with flowering coinciding with the arrival of migrating hummingbirds. The flowers have a fragrance similar to the candy Bit O' Honey that my mother often enjoyed as we were growing up. The flowers also attract larger bees and other pollinators. The Wabash Valley Crossvine, a selection of Bignonia capreolata from its northern most regions in Wabash County in southern Illinois and was selected by the late Dr. Wesley Whiteside and was introduced to the nursery trade by Ellen Hornig via Broken Arrow Nursery. It was selected at least in part for its reliable zone 6 cold hardiness. The Crossvine is a vigorous semi-evergreen, clinging native vine that produces pads at the ends of its tendrils that can attach to most surfaces without harming brickwork and masonry. These native vines make a low maintenance choice for fences, posts, arbors, and larger trellises. Item# 13055

Only one of two Amsonia species to receive a 5-star rating in the Chicago Botanic Gardens trials! Showy clusters of light blue star-shaped 1" wide flowers are produced in spring atop sturdy stems cloaked in dark green willow-like foliage. The Willowleaf Eastern Bluestar has the same basic habit and growth requirements of the more common Eastern Bluestar, Amsonia tabernaemontana var. tabernaemontana, but with larger showier flower clusters that seem to cover the plant, a neat dense vase-shaped habit, and clean disease resistant foliage. An easy to grow, clump-forming native perennial that is tolerant of wet to average moist soils preferring a full to mostly sunny site in the garden and landscape. The flowers of Bluestars attract butterflies and hummingbird moths. Images courtesy of North Creek Nurseries, all rights reserved. Item# 11945

Tall spikes of bright yellow pea-like blossoms are held above the gray-green foliage. Baptisia's are durable pest and disease resistant native taprooted perennials and could be considered the Lupine for the south. An excellent addition to the perennial border or cut-flower garden that is drought tolerant, deer resistant, durable, and easy. Item# 9813.