Helianthus debilis subsp. debilis

east coast dune sunflower

Asteraceae (Compositae)

Plant Specifics

Form:

shrub

Size:

1.0 to 2.5 ft tall by 2.0 to 8.0 ft wide

Life Span:

short-lived perennial

Flower Color:

yellow

Fruit Color:

Phenology:

Deciduous. Perennial but often short lived. Blooms most of the year in its natural range.

Noted For:

Showy Flowers, Interesting Foliage

Landscaping

Recommended Uses:

Ground cover in sandy, open environments.

Considerations:

Aggressively self-seeds, can be a nuisance in the wrong situation.

Light:

Full Sun

Moisture Tolerance:

Somewhat moist, no flooding ---- to ---- Very long very dry periods

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

High. Can tolerate significant and ongoing amounts of salt.

Soil or Other Substrate:

Sand, Loam

Suitable to Grow In:

8B,9A,9B,10A,10B,11

Ecology

Wildlife:

Pollinators, Butterflies, Birds, Mammals

Primarily pollinated by bees. 

Seeds eaten by birds and small mammals.  When full grown, provides a thicket for protection of small birds and animals.

Native Habitats:

Beach dunes, coastal grasslands, sandhill, and scrub