Smooth Oxeye

Heliopsis helianthoides

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Heliopsis
Species:
Heliopsis helianthoides
USDA Symbol:
HEHE5

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Full Sun,Part Shade
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
yellow, orange

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

clearwing borer (Carmenta ithacae), Rigid Borer Moth (Papaipema rigida), Tischeria heliopsisella

Reported Fauna Sightings

Bees: American bumble bee (Bombus pensylvanicus), Black and (Bombus auricomus), Eastern Carpenter Bee (Xylocopa virginica), Half-black bumble (Bombus vagans), Lemon cuckoo (Bombus citrinus), Northern amber (Bombus borealis), Red-belted bumble (Bombus rufocinctus), 🛑Rusty-patched bumble (Bombus affinis), Tri-colored bumble bee (Bombus ternarius), Triepeolus lunatus, Two-banded cellophane-cuckoo bee (Epeolus bifasciatus), Two-spotted bumble (Bombus bimaculatus), Zadontomerus Ashmead Moths:clearwing borer (Carmenta ithacae), Rigid Borer Moth (Papaipema rigida) Butterflies:American Lady (Vanessa virginiensis), Atalopedes Scudder, Common Sootywing (Pholisora catullus), Fiery Skipper (Hylephila phyleus), ⚠️Monarch butterfly (Danaus plexippus), Orange Sulphur (Colias eurytheme), Pearl Crescent (Phyciodes tharos), Red Admiral (Vanessa atalanta), Silvery Checkerspot (Chlosyne nycteis)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rootstock following fire; common in fire-managed prairies.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
good drainage preferred
Moisture:
dry to moderate
Notes:
thrives in prairies and open woodlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
10–21 days
Notes:
Seeds germinate readily with cold stratification; light may improve germination rates.

The above propagation data sourced from Claude AI