Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Helianthus

Species:

Helianthus winteri

Growth Characteristics

Height:

200 cm

Drought Tolerance:

High

Bloom Months:

aug,sep,oct

Bloom Colors:

yellow

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:

birds, butterflies, bees

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Occurs in fire-prone chaparral and grassland ecotones; likely resprouts from root crown after low-severity fire.

Source: deepseek-v4-flash

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds benefit from cold moist stratification for 4-8 weeks to break dormancy; sow in fall or after stratification in spring.

Source: deepseek-v4-flash