Upright Prairie Coneflower

Ratibida columnifera

Native to:
Canada, Mexico, United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Ratibida
Species:
Ratibida columnifera
USDA Symbol:
RACO3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
120 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may,jun,jul,aug,sep,oct
Bloom Colors:
yellow, red, brown

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Pollen Specialist Bee Keystone:
★★☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

American sunflower moth (Homoeosoma electella)

Reported Fauna Sightings

Bees: Red-belted bumble bee (Bombus rufocinctus), Yellow bumble bee (Bombus fervidus)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from crown following fire and readily reseeds into burned areas. Common component of fire-managed prairies.

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in open, sunny areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
10–21 days
Notes:
Light enhances germination. Seeds may germinate without stratification but cold treatment improves uniformity.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are placed in cold moist stratification for 90 days.

Establishment: P. angustifolius is found from North Dakota to Oklahoma and west to New Mexico, Colorado, Arizona, and Utah.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society