Black-eyed Susan Rudbeckia hirta 'Prairie Sun'
ABOUT
The Rudbeckia hirta 'Prairie Sun' is an eye-catching plant with a distinctive appearance. Commonly known as the Black-eyed Susan 'Prairie Sun', this plant features daisy-like flower heads that are particularly striking. Each bloom consists of a central cone that is light green in color, which stands out compared to the more common dark brown-black cores of other Black-eyed Susans. Surrounding the cone is a ring of petals that have a gradient color effect—golden yellow at the base, transitioning to a pale yellow and then to a lighter cream color toward the tips. This gives the flowering heads a bicolor look with a sunny disposition. The leaves of 'Prairie Sun' are narrow, oblong, and covered with bristly hairs, lending a rough texture to the touch. They are deep green in color, which forms a lush backdrop for the brightly colored flowers. The foliage pattern is typically a basal rosette from which individual flower stalks emerge. The plant blooms throughout the summer and often into the early fall, providing a long-lasting display of vibrant flowers that are attractive to pollinators such as butterflies and bees. Overall, 'Prairie Sun' is a celebrated garden favorite known for adding a splash of sunshine to any garden with its cheerful and robust blossoms.
About this plant
NamesFamily
Asteraceae
Synonyms
Black-Eyed Susan, Gloriosa Daisy, Brown-Eyed Susan, Yellow Ox-Eye Daisy, Golden Jerusalem
Common names
Rudbeckia hirta 'Prairie Sun'.
ToxicityTo humans
Black-eyed Susan is generally considered a non-toxic plant to humans. There is no well-documented case of poisoning from ingesting this plant. However, as with any plant, individuals may experience allergic reactions or stomach upset if they are sensitive to it or consume it in large quantities. It is always advisable to exercise caution and avoid ingestion of ornamental plants.
To pets
Black-eyed Susan is also generally considered non-toxic to pets. It should not cause serious harm if pets nibble on it, but ingestion of large amounts could potentially lead to mild gastrointestinal upset, such as vomiting or diarrhea. As with any non-food plant, it is still best to prevent pets from eating it as a precaution.
CharacteristicsLife cycle
Biennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
Yellow
Height
2-3 feet (60-90 cm)
Spread
1-2 feet (30-60 cm)
Plant type
Herb
Hardiness zones
3-7
Native area
North America
Benefits
General Benefits- Attracts Pollinators: This variety is known for attracting bees and butterflies, which are beneficial for pollination of gardens and the ecosystem.
- Landscape Beautification: 'Prairie Sun' adds striking color and visual interest to gardens with its bright yellow petals and green central disk.
- Drought Tolerant: Once established, it is quite resilient to low-water conditions, making it suitable for xeriscaping or drought-prone areas.
- Easy to Grow: Rudbeckia hirta 'Prairie Sun' is considered an easy-to-grow plant that tolerates a variety of soil conditions and requires minimal maintenance.
- Long Blooming Period: This plant has a long flowering season, usually from early summer to autumn, providing prolonged garden interest.
- Heat Tolerant: It can withstand high summer temperatures, which makes it a good choice for warm climates.
- Cut Flowers: The blooms last well when cut, making them perfect for bouquets and floral arrangements.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Black-eyed Susan petals can be used to create a natural dye, which results in a range of colors from bright yellows to greenish browns, depending on the mordant used.
- The seed heads of Black-eyed Susan can be dried and used in floral arrangements to add a unique texture and visual interest.
- Black-eyed Susan's sturdy stems make it an excellent plant for reinforcing the strength of handmade papers when included in the pulp.
- Leaves from Black-eyed Susan can be incorporated into a compost pile as a source of carbon and to improve compost structure.
- The vibrant flowers can be used as a natural fabric print by hammering the petals onto cloth to transfer the color and shape.
- Black-eyed Susan can be planted as part of a wildlife garden, attracting butterflies and bees while providing food for birds with its seeds.
- Using Black-eyed Susan petals, children can create eco-friendly craft projects, like bookmarks or homemade cards, adorned with pressed flowers.
- When included in a rain garden, Black-eyed Susan can help with water filtration and controlling stormwater runoff.
- In photography, the distinctive appearance of Black-eyed Susan is used to create visually striking macro photography subjects.
- Black-eyed Susan can be used as a living mulch to suppress weeds and maintain soil moisture in garden beds.
Interesting Facts
Feng ShuiBlack-eyed Susan is not used in Feng Shui practice.
Zodiac Sign CompitabilityBlack-eyed Susan is not used in astrology practice.
Plant Symbolism- Optimism: The bright yellow petals of the Black-eyed Susan represent happiness, positive energy, and the warmth of the sun, symbolizing an optimistic outlook.
- Justice: In some folklore, the Black-eyed Susan is thought to be a symbol of justice, possibly due to its radial symmetry and consistent form, which can represent equality and fairness.
- Encouragement: Because it is hardy and resilient, the Black-eyed Susan can symbolize encouragement and motivation, especially in challenging situations.
- Adaptability: Its ability to thrive in various conditions represents adaptability and the ability to adjust to different life circumstances.
- Native American Lore: For some tribes, this flower has been used in traditional medicine and is symbolic of the healing and grounding associated with nature.
WaterFor Black-Eyed Susans, it's vital to maintain consistent moisture without overwatering. These plants thrive when watered deeply once a week, allowing the soil to dry out slightly between waterings. Typically, applying one to one and a half gallons per plant per week should suffice, adjusting for rainfall. During hot, dry spells, you may need to increase watering frequency. Ensure water is directed at the base of the plant to avoid wetting the foliage, which can lead to disease.
LightBlack-Eyed Susans require full sun to flourish, meaning they need at least six hours of direct sunlight daily. They will perform best in a location that receives unfiltered sunlight throughout the day. However, in areas with extremely hot summers, providing some afternoon shade can help protect the plants from excessive stress.
TemperatureBlack-Eyed Susans are hardy in a wide range of temperatures and can survive minimum temperatures down to around -30°F. They grow optimally in temperatures ranging from 70°F to 75°F. While they can endure high heat, prolonged temperatures over 85°F may stress the plants.
PruningPruning Black-Eyed Susans helps to promote bushier growth and more flowers. Deadheading, or removing spent flowers, encourages the plant to produce more blooms and can be done throughout the blooming season. In the fall, after flowering has finished, cut the plants back to about 2 inches above the ground to help maintain tidiness and prevent disease.
CleaningAs needed
SoilBlack-eyed Susan thrives in well-draining soil rich in organic matter with a pH of 5.8 to 7.0. A good soil mix for 'Prairie Sun' could be composed of garden soil, compost, peat moss, and perlite to ensure good drainage and fertility.
RepottingBlack-eyed Susans generally do not need to be repotted often as they are typically grown as annuals; however, if grown as perennials, repot every 2-3 years to refresh the soil.
Humidity & MistingBlack-eyed Susan is tolerant of a wide range of humidity levels and does not require specific humidity conditions to thrive. Outdoor ambient humidity is generally sufficient.
Suitable locationsIndoor
Ensure bright light, well-draining soil, and regular watering.
Outdoor
Plant in full sun to partial shade, in fertile, well-draining soil.
Hardiness zone
3-9 USDA
Life cycleThe life of Rudbeckia hirta 'Prairie Sun', commonly known as Black-eyed Susan 'Prairie Sun', begins with seed germination, typically in the spring when temperatures are consistent and the frost has passed. The seedlings emerge and develop into rosettes with oval to lance-shaped leaves as their root structure establishes. During the vegetative stage, the plant grows in height and produces more leaves, preparing for flowering. Flowering occurs in mid to late summer, showcasing the distinct yellow petals and pale green central cones characteristic of 'Prairie Sun'. After pollination, often facilitated by bees and butterflies, the plant sets seed in late summer to early fall; these seeds can be dispersed by wind or wildlife. The plant may die back in winter, especially in colder climates, but can re-emerge from self-sown seeds or sometimes from perennial roots in warmer zones.
PropogationPropogation time
Late summer to early fall
The most popular method of propagating Black-eyed Susan 'Prairie Sun' is by sowing seeds. Sowing can either take place in autumn or early spring, depending on the climate. In cooler climates, sowing seeds indoors about 6 to 8 weeks before the last expected frost will give them a head start. Seeds should be pressed into the soil but not covered, as light will help in their germination. Keep the soil moist, at around 70°F (about 21°C), and seedlings should emerge in 7 to 30 days. Once they've grown sufficiently and there's no risk of frost, they can be transplanted outside to a sunny location with well-drained soil.
