Wildflower Archive

woodland wildflower

American spikenard

Aralia racemosa

American spikenard (Aralia racemosa)1 of 2
American medicinal plants

Native to much of the USA and southern Canada

New Brunswick to Manitoba, south to Georgia, northern Arkansas and northeastern Kansas

  • Light Full sun Sun tolerance
  • Moisture Moist Moisture preference
  • Zones 3–8 Cold to heat range
  • Bloom Jul–Aug Flowering time
  • Height up to 6 ft to 1.8 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A woodland wildflower for full sun and evenly moist soil. Its white flowers peak in July. At up to 6 ft, it needs room in shade gardens and woodland edges. Hardy in USDA zones 3–8.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

When it blooms

The American spikenard's white flowers bloom July to August, peaking in July. This midsummer display draws beetles and flower flies.

Jul–AugJanFebMarAprMayJunJulAugSepOctNovDec

American spikenard blooms whiteFoliage

Pollinators & wildlife

  • Beetles Banded Longhorn Beetle also Strangalepta Flower Longhorn Beetle, Yellow-horned Flower Longhorn Beetle
  • Flower flies Eastern Calligrapher also Tufted Globetail, Tapered Drone Fly
  • Wasps Euodynerus foraminatus also Ancistrocerus capra
  • Also visited by
    • Bees: Pure Green Sweat bee, Modest Masked Bee
    • Moths: White-striped Black

Full plant details

Where it grows

Habitat
WoodlandThe wild plant community it grows in.
Native range
Much of the USA and southern CanadaUnited States (33): AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, PA, RI, SC, SD, TN, VA, VT, WI, WV. Canada (6): MB, NB, NS, ON, PE, QC. Where it grows wild on its own, by state and province.
Native distribution
New Brunswick to Manitoba, south to Georgia, northern Arkansas and northeastern KansasThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Full sunHow much sun it takes, from full sun to full shade.
Moisture
MoistThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 3–8 · Canadian 3–7The cold-to-heat climate range it survives.
Soil
Moist, rich soilThe soils it grows in naturally.
Soil texture
Light to heavy (sandy to clay)The soil grade it prefers, from sand to clay.
Soil pH
Mildly acid to mildly alkalineThe acidity to alkalinity it tolerates (7 is neutral).
Water use
MediumHow thirsty it is, a rough guide to how often to water.

Growth & form

Height
up to 6 ft (to 1.8 m)Typical mature height.
Spread
~4 ft (1.2 m)How wide one plant gets, a guide to spacing.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Jul–AugWhen it flowers.
Flower color
WhiteThe bloom color, or colors.
Fruit/Seeds
ripens Aug–SepThe seed or fruit it sets after flowering.
Toxicity
None knownWhether any part is poisonous to people or pets.