Yellowroot (Xanthorhiza simplicissima): A Native Shrub for Eastern Gardens

Yellowroot (Xanthorhiza simplicissima) is a hidden gem of eastern North American woodlands. Rare in nurseries but featured at renowned arboreta like Arnold (Massachusetts) and J.C. Raulston (North Carolina), this small deciduous shrub deserves wider cultivation for its early spring flowers, lacy foliage, and spectacular fall color.

Plant Profile

• Zones: 3–9
• Native range: Maine to Louisiana, moist woods and streambanks
• Habit: Suckering woody stems, 1–3 ft tall, forming thickets
• Flowers: Starry purple blooms in early spring before leaf-out
• Foliage: Glossy green, finely divided, lace-like
• Fall color: Yellow → bright rosy red → tan, persisting into winter
• Propagation: Easy from cuttings and divisions; seeds eaten by wildlife
• Historical use: Medicinal by Native Americans

Name Decoded

Xanthorhiza simplicissima: Xantho (yellow) + rhiza (root) = yellow root/rhizome. Simplicissima = simple, unbranched stems. It's the only species in its genus and the only woody member of the buttercup family (Ranunculaceae).

Where to See It

The U.S. National Arboretum's Fern Valley native plant collection has documented specimens. The USDA PLANTS database shows it in Maryland (my region) but without county data—likely preferring more inland, mountainous soils over coastal plain.

Where to Buy

Specialty native nurseries, not big-box stores:

• Sunshine Farm and Gardens
• American Beauties Native Plants (vendor locator tool)
• Lazy S'S Farm Nursery

Resources

• Lady Bird Johnson Wildflower Center: wildflower.org
• North Carolina Native Plant Society: ncwildflower.org

For a shade-tolerant, multi-season native with ecological value and understated elegance, yellowroot is a worthy addition to the woodland garden.