Largeflower Jointweed

Polygonum nesomii

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Polygonaceae
Genus:
Polygonum
Species:
Polygonum nesomii
USDA Symbol:
PORO6

Growth Characteristics

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

Garden & Ecology Notes

Wildlife Value:
waterfowl, songbirds

Soil Requirements

Soil Type:
rocky, well-drained sandy loam
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky outcrops and open woodlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days

The above propagation data sourced from Claude AI