The APL is a specialist group within the Horticultural Trades Association, which works to encourage rigorous professional standards among professional landscapers, including brick layers, paviors, carpenters, metal workers, plantsmen, aquatics experts etc.

Benefits for members include: representation by the APL at major RHS shows; RHS members seeking details of landscapers are referred to a list of APL members; contacts through the APL networking system; free advice lines; guidance notes; APL meetings on various topics. Above all, APL works to promote a higher profile for quality landscapers to potential clients.