Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Helianthus

Species:

Helianthus neglectus

USDA Symbol:

HENE

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

200 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

jun,jul,aug,sep,oct

Bloom Colors:

yellow

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:

★★★★☆ Butterfly & moth species supported by this genus (NWF)

Pollen Specialist Bee Keystone:

★★★★★ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, birds

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from rootstock following fire; adapted to fire-prone grassland and prairie ecosystems.

Soil Requirements

Soil Type:

sandy, well-drained, nutrient-poor soil

pH:

7.0 - 8.0 (neutral to slightly alkaline)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to arid, sandy environments

Propagation & Germination

Stratification:

None required

Germination Time:

7–21 days

Notes:

Seeds germinate readily without pretreatment; light may enhance germination.

The above propagation data sourced from Claude AI