How are plant collections arranged according to taxonomy in botanical gardens?

Botanical gardens are distinguished from recreational parks by their focus on the scientific arrangement of plant collections, which are often organized according to their taxonomic relationships.1

In these gardens, plants are typically grouped by family and genus to reflect their scientific classification. For example, a garden might feature an arboretum section specifically for trees and shrubs, or dedicate areas to particular taxonomic groups, such as the rose family (Rosaceae). While some gardens may integrate these groups into the landscape for aesthetic purposes, the underlying principle remains the grouping of related species together.1

It is important to note that strict taxonomic arrangement is not always possible due to environmental requirements, such as the need for greenhouses to protect tropical species from cold climates. Consequently, gardens may also organize plants based on geographic origin or specific habitat needs. Regardless of the layout, these collections serve as essential resources for research, education, and the preservation of genetic diversity.12