Cardamine concatenata

Common Names

Cut-leafed Toothwort, Cutleaf Toothwort, Cut-Leaf Toothwort, Cut Leaved Toothwort, Toothwort, Pepper Root

Summary

Cutleaf toothwort is a North American native perennial in the Brassicaceae that naturalizes by slender rhizomes to form colonies, growing about 6 to 12 inches tall with basal trifoliate leaves and deeply toothed leaflets; flowering stems bear whorls of three leaves and a terminal cluster of four-petaled white to pale pink flowers that bloom in early spring before canopy leaf-out, with distinctive features including tooth-like projections on underground rhizomes and slender siliques as fruits. Cultivation favors moist humus-rich soils in partial shade with consistent moisture and well-drained conditions; hardy in USDA zones 3 to 8, it suits woodland gardens, wildflower beds, and naturalized areas where it forms colonies. Propagation can be by seed or rhizome division; seeds should be sown fresh and require warm conditions followed by cold stratification, with flowering typically 3 to 4 years after sowing. Leaves and rhizomes are edible with a peppery flavor; nectar attracts bees and butterflies, and the plant goes dormant in summer, often naturalizing to fill shaded woodland spaces.

Lifecycle

Perennial

Height

6-12 inches

Spread

6-12 inches

Hardiness Zones

Zones 3-8

Sunlight Requirements

Ideally partial shade

Soil Type

Moist, rich, humus-rich, well-drained loamy soil with slightly acidic to neutral pH

Soil Drainage

Moist, well-drained soil

Soil pH

6.5-7.2

Bloom Color

White (sometimes pink)

Bloom Time

Spring (April–May)

Foliage Color

Green (grayish-green to medium green)

Fall Foliage Color

Yellow

Leaf Lifecycle

Deciduous

Growth Rate

Slow

Seasons of Interest

Spring

Propagation Methods

Seeds, Division, Layering

Attracts Wildlife

Attracts bees, butterflies, and other pollinators