Helianthus decapetalus

Also called Ten-Petaled Sunflower

Yellow petals surround a yellowish-brown central disk
Dark green leaves with serrated edges
Foliage hangs from hairy reddish-green stems
Good cut flower
Attracts birds
Bloom Time: Late summer to mid-fall
Flower Size: 7.5 cm

ZONE:
4

COLOUR:
Yellow

HEIGHT:
125-150 cm

SPREAD:
80-100 cm

Currently Unavailable

Growing and Maintenance Tips:

Grow in partial sun or dappled sunlight, moist to average conditions, and a rich loamy soil. Naturalizes aggressively by seed and rhizome. Flowering is more prolific in long hot summers.

Additional Notes about Thinleaf Sunflower:

Native to Ontario

Characteristics & Attributes

SOIL MOISTURE:
Moist to Average

FLOWERING TIME:
Fall
Lt. Sum-Fall

HABIT:
Upright
Clumping

FOLIAGE COLOR:
Green (dark)

LANDSCAPE USES:
Naturalizing
Woodland/woods edge