Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species.
Sunset®: 1-9,14-24,31-43
USDA: 4-10
Sun Exposure: Light shade to shade (sun in cool climate)
Origin: Europe
Growth Habits: Herbaceous perennial, mat forming, freely rooting runners, up to 6 inches tall (15 cm), 2 feet spread (60 cm)
Flowers: Yellow flowers
Watering Needs: Regular to heavy water, soil should stay moist, can be used as a bog plant
Propagation: Division in spring, cuttings, seeds, can become a lawn weed if not controlled
Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 712
Considered an invasive weed in a few US states.
'Aurea' is a variety with golden leaves. It needs more shade than the type.
Blooming Habits:
Yellow flowers, 1 inch across (2.5 cm) in summer.
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