Coastal Ragweed

Ambrosia hispida

Native to:
Bahamas, Belize, Cayman Is., Cuba, Dominican Republic, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico, Puerto Rico, United States, Virgin Islands, Windward Is.

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Ambrosia
Species:
Ambrosia hispida
USDA Symbol:
AMHI3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
100 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep
Bloom Colors:
green

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Commonly found in coastal areas and dunes.

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with light exposure and consistent moisture. May exhibit variable germination rates.

The above propagation data sourced from Claude AI