R. hirta is an annual to short-lived perennial with characteristics very similar to R. fulgida, but its flowers have a dark brown or brown-maroon center and ‘hairy’ stems. Studies focused on the ethanol extracts of the root have indicated immune-stimulating properties of through the observation of increased activity of phagocytes and the metabolic activity of macrophages, as well as through the increased bacterial activity of microphages on E. Coli cells (Kardošová et al., 1997). Sullivantii (Boynton Et Beadle). The Perennial Plant Association's 1999 Perennial Plant of the Yearâ¢ Rudbeckia fulgida var. This native form of the Black-eyed Susan is longer flowering than the more familiar garden selection âGoldsturm', continuing well into October in many regions. âSonoraâ grows to 12â16 inches in height and spreads 12â18 inches. Hardiness: 5 - 9 Sun: Full Sun . However, if spider mite populations are high, use a spray of horticultural summer oil or insecticidal soap. This variety is ideal for small gardens, containers, and as cut flowers. Stephens Foundation, © 2011–2020 TREK BIRMINGHAM | 900 ARKADELPHIA RD BIRMINGHAM, AL 35204, Site by Scout Branding Company |Powered By WordPress, Black-eyed susan (R. fulgida) smooth stems, Hairy stem of brown-eyed Susan (R. hirta). A new highly oxygenated pseudoguaianolide with 5-LOX inhibitory activity from Rudbeckia hirta L. flowers. The flower heads are 2-3 inches in diameter. Pap. The variety makes an excellent addition to any garden. 2014 Jul;37(7):834-8. Pap. Both of these plants are often referred to as Black-eyed Susan, hence the confusion of common plant names. The leaves grow more upright, which gives the plant a different look than other Rudbeckia species. sullivantii 'Goldsturm' is a popular standard. We hope to change that by offering lesser-known Rudbeckia species such as the 7' tall, powder-blue-leaved, Rudbeckia maxima. All of these pathogens are typically encouraged by excess moisture on the leaves (usually after frequent rain or overhead irrigation), so cultural practices, such as proper spacing to encourage air movement, the removal of dead plant material, and utilizing drip irrigation will reduce the risk for infection. The flower is unique, having yellow petals with a dark brown center and a mahogany eye. Natural predators can be attracted, but the best treatment is any product containing Bt (Bacillus thuringiensis kurstaki). A colorful, fuss-free border plant and excellent choice for cut flowers. Smaller and finer than Rudbeckia 'Goldsturm' with 10 weeks of flowers from July into October. Rudbeckia (Black-Eyed Susan) - a genus of North American wildflowers known for their showy yellow coneflowers. Black-eyed Susans are moderate feeders. University of Vermont Extension System Department of Plant and Soil Science, 1997. The species is a short-lived perennial that will self-seed and works well in naturalized areas. In most cases supplemental calcium via bone meal will be necessary to provide full nutrition. Caterpillars: Caterpillars will cause damage, but it is usually minor. Once established plant outdoors after the last frost. Most are considered perennial; however, there are some annual species, such as R. hirta. Experimentation determining the value of the antioxidant properties of the polysaccharides in the root has examined the their ability to inhibit peroxidation of soyabean lecithin liposomes by OH radicals (Kardošová and Machová, 2006). They can also adapt well to average soils. They should be staked, watered frequently, and dead flower heads removed. Once Rudbeckia is established in the landscape, dead foliage and stems can be removed in the fall, winter, or early spring. Andrew "Drew" Jeffers, Spartanburg Cooperative Extension, Horticulture and Natural Resource Agent, Clemson University. âDenver Daisyâ grows to 18 â 20 inches in height and spreads 12 â 18 inches. You will see some insects on these plants, but not in the abundance as with some other plants. can also be subject to some viruses and phytoplasma diseases which will cause deformed flowers or leaves. 1975. Rudbeckia may be annuals, biennials or perennials, all of which are native to the meadowlands and woodlands of North â¦ For more information on insecticidal soap treatments see fact sheet HGIC 2771, Insecticidal Soaps for Garden Pest Control. Ahmed. Nat. In urban and suburban gardens, the most common black-eyed Susan is Rudbeckia fulgida. The stems grow 3-12 feet tall with pinnate leaves (Wildflower Database). COVID-19 Extension Updates and Resources ... More Information », Factsheet | HGIC 1192 | Published: Mar 1, 2017 | Print. Aphids: There are several naturally occurring predators that aid in the control of aphids, among which are green lacewing larvae and parasitic wasps. Be sure to read and follow all label directions before use. Rudbeckia hirta 'Indian Summer' is a sturdy selection with large, yellow flowers that develop 10 to 14 weeks after seeds are sown. This species typically flowers in mid- to late summer through mid-fall. The ubiquitous, perennial Rudbeckia fulgida and annual/biennial Rudbeckia hirta are the only species that most people know. However, colonies of Black-eyed Susans can become quite large. Be sure to read and follow all label directions before use. The flowers are a dark mix of bronze orange and red. R. hirta 'Chocolate Orange' R. hirta R. hirta, also called gloriosa daisy or yellow ox-eye daisy, is the floral emblem of the state of Maryland.Most types have an upright habit and reach between 3 to 4 feet high. Coneflower, Rudbeckia fulgida goldsturm, and similar plants are easy to look after. Seed: If propagating from seed, sow seeds in early to mid-fall, or early to mid-spring. fulgida black-eyed Susan or orange coneflower. Shiny, deep green foliage. Acclaimed internationally as one of the most popular perennials for the past fifty years, its bright golden-yellow flowers shine in gardens worldwide. Barbara H. Smith, Â©2016 HGIC, Clemson Extension. Plants slowly spread in the garden by rhizomes. The showy flowers will attract bees, butterflies, and the seeds are loved by birds. These plants produce an abundance of bright yellow and orange flowers, each with a dark, button-shaped cone in the center. Good air circulation is appreciated. Join our mailing list to receive the latest updates from HGIC. pulcherrima. Depending on the population, this variety can be an annual, a biennial (a plant with a two-year lifecycle) or short-lived perennial. For more information on planting, see fact sheet HGIC 1153, Growing Perennials. âToto Lemonâ grows to 12â16 inches tall and spreads 10â12 inches. Rudbeckia fulgida var. If any of these pathogens are identified, it is best to remove and destroy the affect plant material, as there is no cure. R. fulgida â¦ Black-eyed Susans typically bloom in late spring through early fall. âGoldilocksâ grows to 20â23 inches in height and spreads 12â18 inches. The flowers are a bright and showy yellow and make perfect cut flowers and are attractants for pollinators and beneficial insects. across (7 cm), from late summer through mid fall. Rudbeckia hirta is also the most often Rudbeckia called black eyed susan. For more specific information on how to divide Rudbeckia, see fact sheet HGIC 1150, Dividing Perennials. If planted in the fall, the plants will have adequate time to acclimate to their new environment. Rudbeckia were used by early North American Settlers as a diuretic and as a stimulant. All recommendations are for South Carolina conditions and may not apply to other areas. Poisonous Plants of the United States and Canada. R. laciniata is a perennial with bright golden-yellow flowers that bend backward and cone-shaped â¦ Capek, P., and A. Kardošová. Tolerates heat, humidity, and clay soil. Res. The flowers are bright yellow with greenish yellow centers. Rudbeckia hirta is a short-lived perennial that should be treated as an annual. âToto Goldâ grows to 12â16 inches in height and spreads 10â12 inches. Their drought resistance and low maintenance make them an excellent addition to a water-wise landscape, raingarden, or xeriscape. The flower has a mix of brown, red, and yellow, and makes excellent cut flowers or specimen plantings. “Water-Extractable Polysaccharide Complex of Rudbeckia fulgida Var. Flowers have brown centers and radiating yellow-orange petals that curve slightly downward with teeth at their apical ends. Structural Characterization of an Acidic Heteropolysaccharide from Rudbeckia Fulgida, Var. This variety is simply stunning. Researched and written by BSC Student Kelsey Moore (2013), Title/abstract search for Rudbeckia fulgida at PubMed, Title/abstract search for Rudbeckia hirta at PubMed, Title/abstract search for Rudbeckia laciniata at PubMed, Title/abstract search for Rudbeckia spp. Rudbeckia triloba is a species native all over the eastern North America. Barbara H. Smith, Â©2016 HGIC, Clemson Extension. Transplants will bloom the year they are planted, and will easily self-sow onto open â¦ floridiana and var. Easily grown in average, moist, well-drained soils in full sun. Add to Any Collection My Collection. Barbara H. Smith, Â©2016 HGIC, Clemson Extension. Carl Linnaeus named the genus Rudbeckia is in honor of 17th century Swedish botanists Olof Rudbeck the elder and his son Olof Rudbeck the younger. Shin, S.U. Use pesticides only according to the directions on the label. Rudbeckia fulgida var. Various portions of the plant have been used (Moerman, 1998). Sylva, NC: Herald Pub., Comp. Rudbeckia fulgida is a tried and true species that has large lance-shaped basal leaves and grows to 2â3 feet in height and 2 feet in width. Rudbeckia prefer evenly moist, well-drained soils, but they are drought and heat tolerant once established. Hamel, Paul B., and Mary Ulmer Chiltoskey. There are about 25 species of Rudbeckia, all native to North America. Caring for Coneflower and other Rudbeckia in the garden. Germination of Rudbeckia should take from one to three weeks. R. hirta is an annual to short-lived perennial with characteristics very similar to R. fulgida, but its flowers have a dark brown or brown-maroon center and âhairyâ stems. Rudbeckia species have an average growth rate and prefer full sun (greater than 6 hours of direct sunlight) but will tolerate partial shade. âPrairie Sunâ grows to 27â 31 inches in height and spreads 12â16 inches. Best bloom occurs in full sun, although plants will tolerate some light shade. Seeds sown in the spring will need to be stratified (subjected to a cold treatment to mimic winter conditions) for 3 months at 40Â°F. Many species are actually biennials or short-lived perennials but because they self-sow readily, they often return each spring from seed dispersed the previous fall. Rudbeckia fulgida var. R. fulgida (left) has long, teardrop-shaped toothed leaves, dark green in color, sometimes tinged purple; the leaves of R. hirta (right) are paler in color, more narrow, less toothy, and leaves and stems are hairy. Deadheading old flowers will encourage re-blooming and keep the plants looking their best. Gedara, M.M. Moerman, Daniel E. (1998) Native American Ethnobotany. Excellent cut flower. Deadhead spent flowers to encourage additional bloom. Some nurseries sell seed-grown plants, howeâ¦ at PubMed, University of Texas Austin, Wildflower Center, Trek Birmingham is a Birmingham-Southern College project made possible by a grant from Blue Cross & Blue Shield, BCBS | Early fall is the best time to plant perennial Rudbeckia, but they can also be planted in mid-April. All recommendations for pesticide use are for South Carolina only and were legal at the time of publication, but the status of registration and use patterns are subject to change by action of state and federal regulatory agencies. sullivantii 'Goldsturm' has been selected by the Perennial Plant Association as the 1999 Perennial Plant of the Year. The leaves are coarse and sometimes feel like sandpaper. Rudbeckia is distributed over most of the United States and parts of Canada. The plant is huge, growing to 39â47 inches in height and spreading 23â29 inches. Rudbeckia also make excellent cut flowers for arrangements due to their bright color and strong stems. Honored as the 1999 Perennial Plant of the Year. (Wildflower Database; USDA). Cherokee tribes used coneflowers to relieve the discomfort of many gynecological and venereal issues (Hamel and Chiltoskey, 1975). There are many areas in the lower part of the state where phosphorus levels are naturally high, so a soil test will determine if adding a fertilizer with phosphorus is necessary or not. Kardošová, A., D. KOŠŤÁLOVÁ,, P. Capek, V. PÄTOPRSTÝ,, and S. FRAŇ0VÁ. Their native habitat is open woods, meadows, and pastures (Wildflower Database). Goldstrum rudbeckia (Rudbeckia fuldiga âGoldstrumâ) is perennial in zones 4 â 9. Black-eyed Susans will average 2â3 feet in height and about 1â2 feet in clump width. Rudbeckia hirta 'Cherokee Sunset' has double and semi-double flowers in shades of yellow, orange, red, bronze, and mahogany. Thanks to the thinner and hairier leaves, this hybrid Rudbeckia shows no signs of the fungus even in wet, humid conditions. Freshwater Land Trust | Adding drama in the late season garden, award-winning Rudbeckia fulgida var. Rudbeckia fulgida, hirta, and laciniata are three of many closely related species. This variety is a biennial or short-lived perennial hardy in zones 3 through 7. Diseases: Rudbeckia are infrequently subject to several disease problems, such as powdery mildew, bacterial leaf spots, fungal leaf spots, stem rots, downy mildew, and fungal rusts. Kingsbury, J.M. It is also believed that the Potawatomi Indians made tea from the roots, which had immunostimulating properties that relieve symptoms of the common cold (Moerman, 1998). R. hirta and R. triloba are biennials or short lived perennials. Follow all directions, precautions and restrictions that are listed. Autumn Black-eyed Susan: USDA Zone: 3-9: Plant number: 1.455.030. It grows across the United States and into Canada. It grows to 2 feet tall. Rudbeckia seed may be planted directly into the garden. Rudbeckia have a clumping, but upright habit, and coarse texture. R. fulgida is a perennial. It is also relatively free of disease and insect problems. hirta and all the showy cultivars are biennial, growing only leaves and stems the first season and blooming the following year. However, there are number of other species worth seeking out because of their unique attributes includâ¦ Germination should take about 2 weeks. Rudbeckia is one of those groups of plants that really can make a statement in the home garden and landscape. This showy variety is ideal for use as cut flowers. Hardiness: 3 - 9 Sun: Full Sun, Partial Sun . Prod. R. hirta has unlobed leaves. While it may be difficult to tell the rudbeckia species apart by their flowers, the form of the leaves is different. Chem. “Antioxidant Activity of Medicinal Plant Polysaccharides.” Fitoterapia 77 (2006): 367-73. Species that are commonly available are R. hirta, R. fulgida, R. grandiflora, and R. triloba. Rudbeckia have erect stems with alternate, deeply lobed pubescent (hairy) leaves. Established plants have some tolerance for drought. Division: Rudbeckia can be divided every 3â4 years in early spring or fall to prevent overcrowding. Rudbeckia hirta, commonly known as Coneflower or Black-eyed Susan, are a tough and sturdy perennial that blooms for long periods. Sullivant's Coneflower Rudbeckia fulgida sullivantii Aster family (Asteraceae) Description: This perennial wildflower is about 1½-2½' tall, branching occasionally. Most Bt products are sold under the trade name Thuricide. Apply this product during the summer can help reduce the number of Japanese Beetle grubs. Rudbeckia hirta (common black-eyed Susan) and R. fulgida (orange coneflower) are the species most readily available to gardeners and include many of the newest cultivars. An upright, rhizomatous, clump-forming, free-blooming coneflower which typically grows to 3' tall, often forming colonies in the wild. Perry, Leonard P. Potentially Harmful Perennials. âAutumn Colorsâ grows to 20â23 inches in height and spreads 12â18 inches. Proper spacing between plants will increase air circulation between the plants to keep leaves dry and help prevent the spread of diseases. âGoldsturmâ grows to 23â29 inches in height and spreads 18â23 inches. Rudbeckia fulgida: pappus present, represented by a minute crown, stolons present, and chaff of receptacle 2.5-4 mm long (vs. R. hirta, with pappus absent, stolons â¦ 2013, 27, 2281-5. Rudbeckia fulgida var. âCherokee Sunsetâ grows to 27â29 inches in height and spreads 12â16 inches. angustifolia, as well as var. Plants do not come true from seed (must be vegetatively propagated). Borne on sturdy stems, each charming flower counts up to 12-20 rays that surround a prominent chocolate central cone. Most species are perennial, but Rudbeckia. Choi and K.R. Rudbeckia maxima is species native to the Southern United States. Brown eyed Susan (Rudbeckia maxima) is species native to the Southern United States. The bright yellow flowers have a dark black center and are a great addition to compliment native plantings. It is short-lived but reseeds itself. Japanese Beetles: Most natural enemies of Japanese Beetles will be mammals that eat the larvae or grubs, such as opossums, raccoons, and skunks. Add to Any Collection My Collection. They can also adapt well to average soils.Rudbeckia have a clumping, but upright habit, and coarse texture. It blooms in mid-summer through mid-fall with large, 3 inch yellow flowers and black centers. sullivantii Goldsturm Deep yellow petals with an orange tint surrounding a purple-brown centre. The stems are scattered and 1-3 feet tall with oblong leaves covered with bristly hairs. Dried plant leaves were usually consumed in the form of a tea. In the absence of a soil test, they can be maintained with an application of a 12-6-6 slow release fertilizer at a rate of 1 pound per 100 square feet in early to mid-April, when new leaves begin to emerge, and again in September at a Â½ pound per 100 square feet. Bright, daisy-like, golden yellow flowers with black centers cover the dark green foliage. Plants are clump forming and produce colonies via rhizomes (underground stems). Test the soil in the landscape bed through Clemson Cooperative Extension for the amount of lime required and the best fertilizer to apply. 55.5 (2001): 311-18. sullivantii (Boynton Et Beadle) Possesses Antitussive Activity.” Chem. Lee. Portland, Or. Rudbeckia fulgida var. The flowers have large dark brown centers with yellow edges. Rudbeckia fulgida var. Common names are from state and federal lists. The yellow flowers are large and showy. Rudbeckia fulgida var. : Timber Press. This is the Maryland state flower. Rudbeckia can be propagated by seed, but the best way to propagate them is by division. The flowers are showier than other Rudbeckia species and have been widely hybridized. Low basal leaves are produced initially that are oval in shape and dentate along their margins; their bases are rounded to slightly cordate. 'Irish Eyes' Butterflies, birds, and bees will not miss these glowing yellow beacons on the 30-inch â¦ Annual Rudbeckia are planted in spring after the last chance of frost. A hallmark of prairies and meadows, Black Eyed Susan (Rudbeckia hirta) is a biennial that blooms and completes its life cycle in its second year with an extravagant floral display. The large yellow flowers have a whimsical look and make excellent cut flowers or even a good choice for a childrenâs garden or fairy garden. The flower heads are 3-4 inches in diameter. They are members of the Asteraceae family and are native to both damp woodlands and dry prairies in North America. Black-eyed Susan (Rudbeckia hirta) is a short-lived perennial that is often planted as an annual. fulgida Experimentation continues to examine the structural characterization of the active ingredients of the root said to offer antitussive and anti-inflammatory abilities (Capek and Kardošová, 2001). R. triloba has smaller flowers, fewer rays and lobes on both stem and basal leaves. âCity Gardenâ is a dwarf version that only grows to 10â12 inches high and spreads 16â18 inches; it is ideal for container gardening. Like many plants, they have several common names, among which are: Black-eyed Susan, Gloriosa Daisy, and Yellow Ox Eye. Additional insects that Rudbeckia will attract are hover flies and minute pirate bugs. Cover the seeds lightly with Â¼ to Â½ inch of soil and keep moist. Colonies of this species can be quite large, covering massive areas. Season: Summer (Mid,Late) If an insecticide is necessary for control, use a spray of horticultural summer oil or insecticidal soap. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Alabama Power Foundation | Copyright Â© 2020 Clemson UniversityClemson Cooperative Extension | 103 Barre Hall Clemson, SC 29634864-986-4310 | Contact UsHGIC@clemson.edu, College of Agriculture, Forestry and Life Sciences, Centipedegrass Yearly Maintenance Program. Recent research on the Black-eyed Susan has been primarily concerned with the polysaccharides and aqueous ethanol extracts of the root of the plant. Six weeks after 'Goldsturm' is brown, this plant is at its peak! Rudbeckia hirta Toto Dwarf, compact plants with golden-yellow blooms. These mites naturally feed on two-spotted spider mites and will provide adequate management if the spider mite populations are relatively low. This species is more dependably â¦ Amer, L. Stevenson and A.F. umbrosa orange coneflower Legal Status. Black-eyed Susans will average 2â3 feet in height and about 1â2 feet in clump â¦ They make excellent cut flowers. Prentice-Hall Inc., Englewood Cliffs, N.J. Lee, S.Y., Y.J. Four varieties of Rudbeckia fulgida, compared. The flowers are a mix of orange and bronze with yellow edges. The classic black-eyed Susan, and state flower of Maryland, is Rudbeckia hirta. Black-eyed Susan, Orange coneflower (fulgida), Brown-eyed Susan (hirta), cut-leaf coneflower (lacinata). However, since these can be pests themselves by digging up the lawn, it is best to prevent them with any product containing Bacillus papillae, such as Milky Spore. âRustic Colorsâ grows to 18â23 inches in height and spreads 12â18 inches. Kardošová, A., and E. Machová. There have been some reports of the Black-eyed Susan causing skin irritation in humans, and the plant is known to be poisonous to cattle and horses (Perry, 1997). 3M | Rudbeckia spp. Rudbeckia prefer evenly moist, well-drained soils, but they are drought and heat tolerant once established. Plants prefer consistent moisture throughout the growing season. Rudbeckia are perennial flowering plants that are hardy in Zones 4â9. There are many black eyed susan varieties and cultivars of this particular species. A favorite flower with almost every Southern gardener, it is known by several common names: black-eyed Susan, brown-eyed Susan, and Gloriosa. Rudbeckia is a genus made up of 23 species, commonly known as Black-eyed Susans, Brown-eyed Susans or Gloriosa Daisy (annual or bienniel). Two-spotted spider mites: There are many naturally-occurring biological control measures, such as predatory mites (Amblysieus swirskii, Amblysieus californicus, Amblysieus cucmeris, and Phytoseiulus persimilis). It is long-blooming and virtually pest-free. With its classic yellow showy flowers with black centers, it is perfect miniature. This information is supplied with the understanding that no discrimination is intended and no endorsement of brand names or registered trademarks by the Clemson University Cooperative Extension Service is implied, nor is any discrimination intended by the exclusion of products or manufacturers not named. fulgida. âGoldrushâ grows to 18â23 inches in height and spreads 18â23 inches. It may likely endure few winters, but will often self-seed prolifically. Michael, B.R., S.R. The showy flowers are approximately 2â3 inches in diameter with ray-like petals and a flat, dark eye center. Features daisy-like flowers (to 2.5" across) with yellow rays and brownish-purple center disks. These insects are very good natural predators of garden pests, such as thrips, aphids, and whiteflies. Rudbeckia species have an average growth rate and prefer full sun (greater than 6 hours of direct sunlight) but will tolerate partial shade. Seeds can be sown indoors up to 2 months before frost; however, it may take 2 years or more to develop a sizeable plant. Cherokee Plants and Their Uses: A 400 Year History. Rudbeckia fulgida 'Viette's Little Suzy' (Black-Eyed Susan) Add to Collection. black-eyed Susan Interesting Notes. ... Rudbeckia hirta 'Chocolate Orange' (Black-Eyed Susan) Add to Collection. A dome-like habit of golden yellow flowers with black centers are produced heavily from July to September here in Michigan, with some color until frost. Rudbeckia is a tough summer-flowering perennial wildflower that likes sun, heat, and humidity. Rudbeckia fulgida is a Missouri native which occurs in both dry and moist soils in open woods, glades and thickets. Rudbeckia hirta âPrairie Sunâ Rudbeckia occidentalis âBlack Beautyâ Rudbeckia hirta âToto Lemonâ Rudbeckia Gold Fountain Rudbeckia hirta âChim Chimineeâ Rudbeckia hirta Rustic Colors Rudbeckia fulgida var. Some of these are Rudbeckia hirta var. Excess nitrogen and phosphorus in water runoff can also lead to potential cyanobacteria algal blooms in ponds and lakes. There have been records of different Native American tribes using the plant to aid in the treatment of dropsy, worms, snakebites, and earaches (Moerman, 1998). fulgida can be differentiated from similar species because it has narrower glossy leaves, smaller flowerheads than some and uniformly sized upper leaves. Rudbeckia subtomentosa is a long lived perennial species with lobed basal leaves. If this document didnât answer your questions, please contact HGIC at email@example.com or 1-888-656-9988. âLittle Goldstarâ grows to 14â16 inches in height and spreads 14â16 inches; it is ideal for container gardening. (1964). Rudbeckiaâs upright growth and coarse texture makes it ideal for mass plantings in naturalized areas or in the background of perennial beds. R. laciniata is a perennial with bright golden-yellow flowers that bend backward and cone-shaped green centers that become brownish as they mature. Arch Pharm Res. Rudbeckia laciniata is affectionately known as the âOut House Plantâ. Click on a place name to get a complete protected plant list for that location. deamii is a clump-forming, erect perennial boasting masses of rich golden yellow flowers, 3 in. You are right â neither Rudbeckia hirta nor the similar Rudbeckia fulgida attract a ton of pollinators. Preferred growing conditions. Unlike many other black-eyed Susans, this one does not require staking. Perennials. Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. 51.1 (1997): 52-59. Rudbeckia grandiflora is a rhizomatous perennial species native to the Eastern United States. A new flavonol glycoside from the aerial part of Rudbeckia laciniata. Rudbeckia hirta Rustic Dwarfs Shorter variety with a mix of flowers from yellow to rich mahogany. sullivantii 'Goldsturm' Sku #7101.