Listing methodology
Useful classifications, backed by public sources.
We use conservative labels and visible verification dates so visitors can understand what is known—and what still needs confirmation.
How a source qualifies
A listing must have current public evidence that it sells or distributes Arizona-native plants, Southwest-native plants, regional seed, or native restoration material. A directory mention alone may establish a research lead, but claims about services should ideally be supported by the source's own website.
Native specialist
Native plants, regional seed, or restoration material are a primary and clearly documented part of the organization.
Native-forward nursery
The nursery publicly promotes a meaningful native selection, although it also carries broader ornamental inventory.
General nursery with natives
The business documents some native inventory but does not demonstrate a primary native focus.
Seasonal plant source
A garden, arboretum, nonprofit, or similar organization offers recurring plant sales rather than permanent daily nursery retail.
What “checked” means
The date shown on a listing is the date its cited public information was reviewed. It does not mean current inventory was confirmed by phone or that the business has claimed its profile.
What we do not assume
Desert-adapted plants are not automatically Arizona natives. A cactus nursery is not automatically a native nursery. We do not infer retail access, shipping, local ecotypes, or restoration capability unless a public source supports it.
Corrections
Businesses and visitors can suggest additions or corrections. Material changes are checked against a public source before publication whenever possible.