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Xanthorhiza simplicissima (Yellow Root)

Yellowroot, Yellow Root, Shrub Yellowroot, Xanthorhiza apiifolia

Xanthorhiza simplicissima, Yellowroot, Yellow Root, Shrub Yellowroot, Xanthorhiza apiifolia
Xanthorhiza simplicissima, Yellowroot, Yellow Root, Shrub Yellowroot, Xanthorhiza apiifolia
Xanthorhiza simplicissima, Yellowroot, Yellow Root, Shrub Yellowroot, Xanthorhiza apiifolia

Xanthorhiza simplicissima (Yellow Root) is a low-growing, spreading shrub with erect stems clothed with pinnately compound, deeply lobed leaves. Bright green in spring, the foliage turns showy shades of red, yellow, orange, or purple in fall. The plant boasts a profusion of arching sprays packed with small, plum-colored or maroon, star-shaped flowers with yellow centers in mid to late spring. Borne at the top of unbranched stems, they are attractive when viewed up close but not showy. The main asset of this plant is its elegant foliage. The stems and roots produce a deep-yellow dye when crushed, hence the common name. Native to eastern North America, Yellow Root occurs naturally in moist woodland areas with free-draining, acidic soils, where it spreads slowly by root suckers to form dense colonies, making it an excellent ground cover. Very adaptable, Yellow Root can help stabilize slopes and looks great in a naturalistic garden.

  • Grows up to 6-30 in. tall (15-75 cm) and 6-10 ft. wide (180-300 cm).
  • Performs best in part shade in acidic to neutral, moist but well-drained soils. Tolerates full shade in the southern part of its range and a wide variety of soil conditions, including wet soils, dry soils, or clay soils. Tolerant of occasional flooding or drought once established.
  • Great for beds and borders, cottage gardenswoodland gardensbanks, and slopes, along ponds and streams, or as a groundcover.
  • This plant enjoys excellent resistance to pests and diseases. Deer resistant.
  • No routine pruning is necessary. Remove diseased, damaged, congested, or crossing shoots. After pruning, mulch and feed. If pruning is needed, prune immediately after flowering.
  • Propagate by seed sown in containers outdoors in autumn or by division in spring or autumn.
  • Native to the eastern United States.

Requirements

Hardiness 3 - 9
Heat Zones 3 - 9
Plant Type Shrubs
Plant Family Ranunculaceae
Common names Yellow Root, Shrub Yellowroot
Exposure Partial Sun, Shade
Season of Interest Spring (Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 6" - 3'
(15cm - 90cm)
Spread 6' - 10'
(180cm - 3m)
Spacing 72" - 120"
(180cm - 3m)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, Northeast, Pennsylvania, Connecticut, Maine, Maryland, New York, Midwest, Ohio, Southeast, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Alabama, Florida, Georgia, Kentucky, Southwest, Texas
Tolerance Full Shade, Drought, Deer, Dry Soil, Clay Soil, Wet Soil
Garden Uses Banks And Slopes, Beds And Borders, Ground Covers, Ponds And Streams
Garden Styles Informal and Cottage
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Recommended Companion Plants

Kalmia latifolia (Mountain Laurel)
Rhododendron maximum (Great Laurel)
Cornus florida (Flowering Dogwood)
Clethra alnifolia (Summersweet)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 9
Heat Zones 3 - 9
Plant Type Shrubs
Plant Family Ranunculaceae
Common names Yellow Root, Shrub Yellowroot
Exposure Partial Sun, Shade
Season of Interest Spring (Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 6" - 3'
(15cm - 90cm)
Spread 6' - 10'
(180cm - 3m)
Spacing 72" - 120"
(180cm - 3m)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, Northeast, Pennsylvania, Connecticut, Maine, Maryland, New York, Midwest, Ohio, Southeast, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Alabama, Florida, Georgia, Kentucky, Southwest, Texas
Tolerance Full Shade, Drought, Deer, Dry Soil, Clay Soil, Wet Soil
Garden Uses Banks And Slopes, Beds And Borders, Ground Covers, Ponds And Streams
Garden Styles Informal and Cottage
How Many Plants
Do I Need?

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