Seaside Knotweed

Polygonum glaucum

Seaside Knotweed

Britton, N.L., and A. Brown. 1913.

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Polygonaceae
Genus:
Polygonum
Species:
Polygonum glaucum

Growth Characteristics

Life Cycle:
Annual | Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
2-3 ft
Light Requirements:
Full Sun
Bloom Months:
jul, aug, sep, oct, nov
Bloom Colors:
White, Pink

Native Range

United States: Connecticut, Delaware, Florida, Georgia, Massachusetts, Maryland, North Carolina, New Jersey, New York, Rhode Island, South Carolina, Virginia

Host Plant for Caterpillars

Aroga alleriella

Soil Requirements

Soil Type:
sandy, nutrient-poor, well-drained soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to coastal dunes and sandy areas