List of botanical gardens and arboretums in the United States

This list is intended to include all significant botanical gardens and arboretums in the United States.

The total number of Botanical Gardens recorded in the United States of America depends on the criteria used and is in the range from 296 to 1014.

The Approximate number of living plant accessions recorded in these botanical gardens — 600,000.

The Approximate number of taxa in these collections — 90,000 taxa or approximately 40,000 species.

Estimated percentage of collections in existence before Convention on Biological Diversity — 70%