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Rudbeckia triloba 'Prairie Glow' (three-lobed coneflower) Rudbeckia triloba 'Prairie Glow' (three-lobed coneflower)

Rudbeckia triloba 'Prairie Glow'

three-lobed coneflower or brown-eyed Susan

Rudbeckia triloba 'Prairie Glow' has our attention! With brightly colored flowers of yellow with a bright red eye fading to a glowing orange to bronze, this native beauty brings fire to the sunny border. It's multi-branching habit provides dense flower cover, more so than the straight species, and it's late blooming time, starting in July and flowering right through to October, makes this a valuable pollinator plant. 

SIZE
Rudbeckia triloba 'Prairie Glow' LP50 - 50 per flat Availability
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Height

24-40 Inches

Spread

12-18 Inches

Spacing

12 Inches

Bloom Color

Mixed Colors

USDA Hardiness Zone 3-9

three-lobed coneflower Interesting Notes

Found from Vermont to Texas to Utah to Georgia, Rudbeckia triloba prefers sandy or loamy, moist soils but can tolerate periods of drought. Commonly residing in moist fields, it likes disturbed habitats such as along roadsides or rail lines. The wide variety of habitats this plant tolerates display its adaptable appeal, as long as there is full sun. In a happy location, Rudbeckia will self-sow which allows easy propagation for this short-lived plant.


Rudbeckia triloba is in full bloom after Rudbeckia ‘Goldsturm’ begins to fade but before Rudbeckia fulgida var. fulgida comes into its full glory. It has earned its place in our mid-height meadow where plants must tolerate an early summer mow and biennial burns while being less than 3’ tall to maintain sight lines. Three-lobed coneflower supports a multitude of native bees including digger bees and carpenter bees as well as the specialist pollinator, Andrena rudbeckiae. The plant is self-pollinated but that doesn’t stop the wasps, butterflies, and flies from visiting. The foliage is also fed upon by a variety of native beetles, which while it doesn’t help the lower foliage, it does help support a full range of insects for their necessary habitat.

Rudbeckia triloba 'Prairie Glow' Growing and Maintenance Tips

Prefers sandy or loamy, moist soils, but is drought resistant. Spreads slowly by rhizomes. Deadhead to prolong blooming season. Propagate by seed, cuttings and division. Cut back to the ground after first frost and mulch to protect roots for the winter. Outstanding in mass plantings, as a border perennial, or in rock or low maintenance gardens.

Good Substitutions

three-lobed coneflower Rudbeckia triloba

Key Characteristics & Attributes

Full Sun
Full Sun
Moist
Moist
Pollinator-friendly
Pollinator-friendly
Songbird-friendly
Songbird-friendly
Deer Resistant
Deer Resistant
Groundcover
Groundcover
Cut Flower
Cut Flower
Drought Tolerant
Drought Tolerant
Summer
Summer

Additional Information

Soil Moisture Needs
Average
Green Infrastructure
Meadow/Prairie
Wetland Indicator Status
Falcutative Upland (FACU)
Plug Type
Landscape Plug™
Horticultural Plug
Attributes
Native to North America
Season of Interest (Flowering)
Fall
Late Summer
Propagation Type
Seed cultivar