Nepalese Smartweed

Persicaria nepalensis

Native to:
Afghanistan, Burundi, Cameroon, China, DR Congo, Eritrea, Ethiopia, Gulf of Guinea Is., Hainan, India, Japan, Jawa, Kenya, Korea, Kuril Is., Laos, Madagascar, Malawi, Malaya, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Russia, Rwanda, South Africa, Sri Lanka, Sudan-South Sudan, Tadzhikistan, Taiwan, Tanzania, Thailand, Uganda, Vietnam, Yemen, Zambia

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Polygonaceae
Genus:
Persicaria
Species:
Persicaria nepalensis
USDA Symbol:
PONE9

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep,oct
Bloom Colors:
pink, white

Garden & Ecology Notes

Wildlife Value:
birds

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
native to moist, forested areas and stream banks

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate readily in moist conditions after cold stratification.

The above propagation data sourced from Claude AI