TABLE 2.

Search strategy for PubMed database indicating concept search steps, combinations, and wildcards.

Search	Concept	Keywords
1	Social prescribing	“Social prescri*” or “social referr*” or “community referr*” or “community link*” or “link worker*” or “community connect*” or “community navigat*” or “refer to community” or “referral to community” or “non#medical referr*” or “non#medical prescri*” or “health train*” or “well#being program”
2	Mental health	“Mental health” or “mental ill health” or “mental illness” or “mental disorder” or “mental fatigue” or “psychiatric” or “psychiatric illness” or “psychological” or “psychological illness” or “stress” or “depression” or “anxiety” or “recovery” or “low mood” or “well#being” or “quality of life”
3	Nature therapy	“Eco#therap*” or “nature#therap*” or “green#therap*” or “green#care” or “plant#therap*” or “horticulture#therap*” or “therapeutic horticulture” or “community farm*” or “community garden*” or “garden therap*” or “Therapy garden” or “farm therapy” or “care farm” or “conservation therap*” or “forest#therap*” or “forest#bathing” or “shinrin#yoku” or “wilderness therap*” or “adventure therap*” or “urban space therap*” or “Urban green space*” or “green#space” or “agriculture therap*” or “therapeutic agriculture” or “blue therapy” or “blue care” or “urban blue space” or “blue space” or “hydro#therapy” or “aquatic#therapy” or “aqua#therapy”
4	Green/blue prescription	“Park#prescri*” or “green#prescri*” or “blue#prescri*”
5	All searches combined	(Social prescribing and mental health and nature therapy) OR [(green/blue prescription) and mental health]
6	Limits	English language 2,000 onward Peer-reviewed journal articles

^#Indicates zero or one characters, *indicates one or more characters.