Missouri Botanic Gardens Plants of Merit

The 2011 Perennial Plant of the Year! Arkansas Blue Star provides three seasons of interest with starry light-blue to nearly white flowers in spring, soft-textured narrow medium green foliage in summer, and wonderful golden yellow, orange, and chartreuse fall color. A sun loving and heat tolerant reliable perennial that is mannerly enough to grace any garden. Item# 9715.

Masses of 1" wide, bluish purple daisies with a yellow-eye absolutely cover these plants for weeks in late summer and fall attracting bees and other smaller pollinators. The Aromatic Aster, Symphyotrichum oblongifolius, 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 as well as for additions to low maintenance landscapes. Provide a full to mostly sunny site in an average moist, well-drained soil.Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Item# 10075

Beautiful, deep blue flowers emerge from spikes of black calyxes on this exquisite perennial Salvia all summer and fall against a backdrop of rich deep green foliage. Black and Blue Salvia, an Anise Sage and selection of Salvia guaranitica, is a highly sought after nectar plant for hummingbirds and may also be visited by larger butterflies. This easy and reliable perennial Salvia slowly spreads by rhizomes to create a tall groundcover like effect up to about 3' high but may remain shorter in drier poorer soils. Provide a full to mostly sunny position in an average moist to moist, average to well-drained, moderately fertile soil for maximum vigor and flower production. Easy and reliable. Item# 808

2022 Missouri Botanic Garden Plants of Merit selection! One of the most amazingly blue colored flowers in the plant world! This small growing but vigorous annual or tender perennial vine produces loads of brilliant deep blue flowers with recurving and overlapping petals with a white to creamy yellow throat. It can be successfully overwintered but it's easier just to save a few seeds to plant in spring. Caterpillar host: Longtail Skipper. Item# 9114

Blue dye can be extracted from the blossoms!!

The dense, rounded, white to greenish-white, up to 1" diameter, flower clusters sit atop thick sturdy stems that emerge from a rosette of soft yucca-like foliage and are produced over an extended period in summer. Button Snakeroot, Eryngium yuccifolium, is a tough and long-lived, adaptable clump forming native perennial whose long-lasting summer flowers will attract a myriad of butterflies, bees, wasps and other pollinators to your garden. Typically found in consistently moist settings like bogs, moist savannahs, prairies, and meadows but it readily tolerates average moist garden conditions. Provide Button Snakeroot with a full to mostly sunny site in an average moist to moist soil. Item# 9260

Lightly honey scented, white to cream, tight ball-like flower clusters are produced on new growth in late spring and summer and attract an array of butterflies, bees, and other garden beneficials. The Buttonbush is a vigorous, medium-sized to large growing, deciduous shrub that does best in consistently moist soils with most of a day of sunlight. A moderate to severe annual pruning of established plants in late winter helps to promote fuller plants and the most flowers. Item# 9247.

2-3' high spikes of glowing scarlet tubular flowers are produced in late spring or summer on this US native wildflower. A rosette forming herbaceous perennial to biennial, the Red Cardinal Flower is commonly found along stream banks, marshes, and bogs and will perform well in average to wet garden soils. Attracts hummingbirds and other pollinators. Item # 1217.

An exceptionally free flowering form of our native Coral Honeysuckle producing a nearly continuous display of red tubular blooms with a yellow throat. Dan's Everblooming Coral Honeysuckle begins flowering in late winter and early spring and lasts through fall on established plants. This variety may produce a few flowers throughout winter even in zone 8B. Caterpillar host: Chalcedon Checkerspot. Item# 9729.

1" tubular orange blooms, tipped in white, are produced from spring to fall on this upright to spreading shrub-like perennial. David Verity Cigar Plant is an easy to grow, heat and sunloving hybrid Cuphea that flowers non-stop from spring or early summer through fall. In the portion of its range where freezes occur, it can be grown as an annual or if protected with a mulch it is generally a reliable perennial well into zone 8. David Verity Cuphea makes for an easy and rewarding container specimen as well as in the garden and landscape. Excellent for hummingbirds and larger butterflies. Item # 361

Masses of deep brick red trumpet shaped flowers nearly cover up this vine in spring or early summer just in time for arriving hummingbirds. It's almost like the two coordinate it or something! The red Dragon Lady Crossvine is a vigorous evergreen to semi-evergreen clinging vine(it does so via pads on the end of its tendrils and so is not destructive to brickwork and masonry) that can easily clamber up or along masonry, tree bark, fences, or other structural supports on its own. Crossvines are a low maintenance choice for fences, posts, arbors, and larger trellises. The deep red trumpet shaped flowers attract hummingbirds, bees, and other pollinators. The foliage takes on purple and burgundy coloration throughout the cooler months when grown in full to mostly sunny conditions. Dragon Lady Crossvine is reported to be a slightly more cold hardy selection and was chosen as the Pennsylvania Horticulture Society's Gold Medal Award winner in 2003. Item# 391

Clusters of blue to light blue, star-shaped flowers are borne in spring on sturdy stems atop the wide foliage. The Eastern Bluestar makes a wonderful garden addition with a mannerly clump forming habit and excellent pest and disease resistance. Yellow fall foliage color adds to its interest. Tolerant of wet to average moist soils. Eastern Bluestar is an easy to grow and reliable native perennial. The flowers attract butterflies and hummingbird moths. Item# 10268

2022 Missouri Botanic Garden Plants of Merit selection! 18" long arching spikes composed of numerous dark golden yellow flowers burst onto the scene in late summer and fall creating a much needed feast of nectar and pollen for bees, butterflies including migratory Monarchs, and other garden beneficials. Fireworks is an award winning selection of the native Roughleaf Goldenrod, Solidago rugosa, and it won top marks in the Goldenrod trials at the Chicago Botanic Gardens. This is a hardy, clump-forming slowly spreading (a.k.a. short rhizomatous) herbaceous perennial that is both adaptable and manageable. Fireworks Goldenrod prefers a full to mostly sunny site in an average moist to moist fertile soil although it is tolerant of part shade, part sun conditions. Use this easy to grow native perennial in naturalistic settings and in mixed perennial gardens and landscapes. Item# 12313

The most floriferous Esperanza that we grow! Gold Star Esperanza produces an endless display of large clusters of large golden yellow, lightly fragrant trumpets from late spring to frost. This Greg Grant selection is the standard by which all other Esperanza's are judged. Hardy, heat and sun loving, and with a nicely branched habit Gold Star Esperanza is great for tropical settings in containers and in the garden. Attracts pollinators including butterflies, hummingbirds, and bees. Item # 9902

The huge, to 6", golden, daisy-like blooms with tall dark brown cones or eyes are held on tall sturdy stems which can grow to 7' or more! A tough and hardy, native perennial. Great for pollinators. The large attractive soft, blue-green foliage makes a nice garden accent and is at its prime in winter and spring. Selected as 2019 Missouri Botanic Gardens Plant of Merit selection. Item# 1152

Texas big blooms are a hallmark of this rich orange flowered crossvine. This is an absolute show stopper when in full bloom! Produces a huge mass of 2-1/2" orange trumpets with yellow throats in late spring with some flowers throughout summer. A vigorous and disease free southern native. 'Helen Fredel' is another excellent introduction from noted Texas horticulturist and author Greg Grant. Attracts hummingbirds and other pollinators. Item# 9576.

Perennial of the Year in 2016, Missouri Botanic Gardens Plant of Merit, and a RHS Award of Garden Merit winner! As per Allan Armitage's Herbaceous Perennial Plants, 4th Edition "It has graced European gardens since the beginning of the American Civil War and is still the most popular and highly sought after white anemone today.". The clusters of 2-3" wide, pure white, upward facing flowers with yellow eyes are held high above the mass of deep green foliage on sturdy wiry, 3-4' high stems in fall. The flowers of this easy heirloom attract bees and other pollinators. Honorine Jobert Anemone is an easy to grow, clump forming, slowly spreading, shade tolerant perennial whose mass of 12" high, medium textured, deep green, Astilbe-like foliage makes a nice accent or groundcover even when the plants are not in flower. Anemones make good companions for spring flowering bulbs. Tough, easy, and reliable. Tolerant of *full sun in cool summer climates, elsewhere provide midday and afternoon shade or filtered shade. Provide an average moist, well-drained, fertile soil for optimum flowering and vigor. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 12778

Dense clusters of fragrant dark azure to blue-violet flowers nearly cover up the nicely contrasting blue-gray foliage of this shrubby perennial beginning in mid to late summer and continuing into fall. The flowers attract butterflies, bees, and other pollinators. Longwood Blue Bluebeard is a vigorous freely flowering selection of Caryopteris growing to 4' high and 3-4' wide and selected by Longwood Gardens of Pennsylvania. Caryopteris prefers a well-drained soil in a full to mostly sunny position. Somewhat drought resistant once well-established. A Missouri Botanic Gardens Plant of Merit award winner. Item# 11671

Considered by many to be the best of the red flowered Coral Honeysuckles. Major Wheeler produces loads of large clusters of deep red 2" tubular flowers with yellow throats are held above the rich blue-green disease resistant foliage of this selection of the tame native Coral Honeysuckle. Caterpillar host: Chalcedon Checkerspot. Image courtesy of North Creek Nurseries. Item# 9719.

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The typical Mexican Butterfly Weed that produces clusters of orange to red-orange flowers with contrasting sunny yellow centers are produced from mid to late spring to frost or nearly year round under warm tropical conditions. An excellent host plant for Monarch, Queen, and Soldier Butterflies. It has a naturally upright to vase shaped habit and the stems are adorned with medium sized deep green narrow foliage. Mexican Butterfly Weed can be grown as a short-lived (2-3 years usually) die-back perennial in zones 8-9, it should remain evergreen in zone 10, and is commonly grown as an annual in colder zones. Makes a wonderful heat and sunloving plant with something of a tropical look. Use Mexican Butterfly Weed at the back of the perennial border or in mixed combination pots. Item# 502

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