American Pokeweed

Phytolacca americana

Native to:
Canada, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Phytolaccaceae
Genus:
Phytolacca
Species:
Phytolacca americana
USDA Symbol:
PHAM4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
300 cm
Light Requirements:
Part Shade
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
white, pink

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

beet webworm moth (Spoladea recurvalis), Giant leopard moth (Hypercompe scribonia), Nealyda phytolaccae, somber carpet moth (Disclisioprocta stellata), Southern armyworm (Spodoptera eridania), Synchlora herbaria, Yellow-striped armyworm (Spodoptera ornithogalli)

Reported Fauna Sightings

Moths:Obscure Psara Moth (Psara obscuralis)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from deep taproot after fire or cutting. Often increases in disturbed areas post-fire.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
4.5 - 7.0 (acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Common in disturbed areas and forest edges

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–30 days
Notes:
Seeds germinate best after cold stratification. Light may improve germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Notes: Seeds may require light for germination.

Source: Claude AI

ORGHPS Germination Guide: Sow at 4°C for 3 months, then place @ 20°C for 3 months. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * wash in detergent; store dry

Source: Ontario Rock Garden & Hardy Plant Society