STANDARD 1: Plant collections reflect and support the institution’s mission, and long-range institutional plans.
STANDARD 2: Collections are well-defined, appropriate for the site’s growing conditions, facilities, and space, and can be realistically developed given institutional resources.
STANDARD 3: Plants within collection represent broad taxonomic and genetic diversity, with current holdings comprising a minimum of 50% of the stated collection scope.
STANDARD 4: Plants are acquired legally and ethically according to their collection’s stated purpose.
STANDARD 5: Plant species are of known wild provenance for greatest conservation value; cultivars are obtained directly or indirectly from breeder/introducer.