Heuchera villosa , hairy alum root

Hairy alum root
Heuchera villosa 

Hardiness: Zones 3 to 8
Plant type: Herbaceous perennial
Height: 1.5- 3'
Spread: 1.5- 2'
Sun: Full sun to part shade
Water: Medium
Bloom time: August, September
Bloom color: White
Soil: Moist, organically rich soils, Loamy, average well-draining soils, Sandy, well-draining soils, Neutral (≈7)

Notes: Latest blooming heuchera, hummingbirds and diminutive native bees seek the nectar.

More information on this plant here.