giant ragweed
Ambrosia trifida
Giant ragweed is a tall, fast-growing annual weed with coarse foliage and inconspicuous green flowers that produce large amounts of allergenic pollen in late summer and fall. It thrives in disturbed areas and is considered a serious agricultural and environmental weed across much of North America.
Overview
- Form
- Growth Rate
- Size
- Dormancy
Tolerances & Soil
Seasonality
Bloom Season
Season of Interest
Succession Role
Native to the United States
Native Range
Eastern North America
Native to: Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, West Virginia, Wisconsin
Function & Care
Establishment & Care
- Establishment
- Maintenance
- Propagation