Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Ashy sunflower

Helianthus mollis

Also called Soft Sunflower

Ashy sunflower
Photo: Eric Hunt, CC BY-SA 4.0

Ashy sunflower is a perennial native sunflower from eastern North America, growing up to about 1.5 m tall and spreading by underground rhizomes. It thrives in full sun and well-drained soil and is easy to establish from seed or division.

Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun
Water
Water regularly while establishing, then mostly rely on rainfall; tolerates dry spells once mature.
Soil
Well-drained soil, tolerates poor and dry soils.
Temperature
Hardy in cold winters; suited to temperate climates.
How easy
Easy
Native range
SE. Canada to C. & E. U.S.A.
Climate
temperate

About

Helianthus mollis is a species of sunflower known by the common names ashy sunflower or downy sunflower. It is widespread across much of the United States and Canada, primarily the Great Lakes region from Ontario south to Texas and Alabama. However, it is considered to be locally endangered within the state of Ohio. Additional populations are found in the states of the Atlantic Coast from Maine to Georgia, but these appear to be introduced.

Helianthus mollis grows on prairies, roadsides, dry open woods, rocky glades, fields, and thickets. It is a perennial herbaceous plant up to 1.5 m (4.9 ft) tall, spreading by means of underground rhizomes. The leaves are mostly along the stem rather than crowded near the base, each egg-shaped with teeth along the edges. One plant produces 1-15 flower heads containing 17-22 yellow ray florets surrounding 75 or more yellow disc florets.

Other Helianthus plants

Southeastern sunflower · Helianthus ambiguus · Swamp sunflower · Common sunflower · Western sunflower · Silverleaf sunflower · Arizona sunflower · Purpledisk sunflower · Serpentine sunflower · Helianthus brevifolius · California sunflower · Lakeside sunflower

Text excerpted from the Wikipedia article Helianthus mollis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…