Sneezeweed
Helenium autumnale

Hardiness: Zones 3 to 8
Plant type: Herbaceous perennial
Height: 3- 5'
Spread: 2- 3'
Sun: Full sun
Water: Medium to wet
Bloom time: August to October
Bloom color: Yellow rays and dull yellow center disks
Soil: Clay-based, moist, organically rich soils, acid (<7pH).

Notes: Thrives in wet or evenly moist soil but will tolerate a bit of drought after establishment, avoid fertilization as it can cause weak stems.

More information on this plant here.