Rudbeckia fulgida var. speciosa

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Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: low

Soil Moisture: dry, moist

Soil Description: rich, average, loam, clay, gravel/rock

Height: 1'-2'

Bloom Time: July, August, September

Bloom Color: yellow, orange

Leaf Color: green

Hardiness Zone: 5, 6, 7, 8

Additional Tags: attracts bees, attracts butterflies, clumping, cut flowers

Rudbeckia fulgida var. speciosa

Pricing & Availability

Description

Rudbeckia fulgida var. speciosa

Also known as:

orange coneflower

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Scientific Synonyms:

Rudbeckia fulgida var. sullivantii, Rudbeckia gloriosa, Rudbeckia speciosa, Rudbeckia speciosa var. sullivantii, Rudbeckia sullivantii

Description

Topping off at a height of 2', Rudbeckia fulgida var. speciosa is a somewhat low-growing coneflower. It does however have very large flowers relative to its size. They are daisy-like, with orange-clored rays, dark brown disks, and are up to 4" across. The leaves are up to 5" long, alternate, broadly eliptic with dentate margins, and medium to dark green.

Cultivation

Very easy to grow under average garden conditions, it does well in full to part-sun, and moist to dry, well-drained soil. It enjoys a long blooming period of 2 months or more, beginning mid-summer and often extending into early fall. It is not aggressive and will form dense colonies vegetatively by its fibrous, rhizomatous root system more so than by seed. Zones 5-8

Propagation

To produce viable seed, flowers must be cross-pollinated with those of genetically distinct plants. Easy to propagate by division in early spring or fall.

Additional Notes

Rudbeckia fulgida is the species from which most commercial cultivars are derived. They do however tend to be more susceptible to disease. "Orange Coneflower (Rudbeckia fulgida) is quite variable in appearance from one site to another. Consequently, this species has been a source of taxonomic problems that continues to this day. Some authorities classify Orange Coneflower as a single species consisting of several varieties, while others regard it as a complex of several closely-related species. Here, Sullivant's Coneflower is treated as a variety of Orange Coneflower." -- Illinois Wildflowers

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, AR, CT, DE, GA, IL, IN, KY, MA, MI, MO, NJ, NY, OH, PA, VA, WI

USDA Endangered Status:

  • Endangered: NJ

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Rudbeckia coneflower
Species Rudbeckia fulgida var. speciosa orange coneflower