In this paper, private gardens are portrayed as spaces and implements of aristocratic passion for plant collecting, of competition within the gentry, as well as of scientific professionalisation for botanists. This paper traces the early history of botanical collections in the Russian Empire from the 18th to the early 19th century as part of an elite culture which encouraged amateur patrons to invest in expeditions, gardens, and, consequently, in professionals to manage such projects. Young graduates of European universities who began their careers working at private botanical institutions could later successfully apply for academic positions. The circulation of specimens had developed as a key element of botanical collection and an important basis for the networking of professionals and amateurs around the world. This paper argues that collecting plant specimens became an important means for engaging in “power games” and even “plant diplomacy.” These new responsibilities significantly increased botanists' status as experts. A diverse group of personalities, such as the Empress Catherine II, King George III of England, the industrialist Prokophy Demidov, aristocrat Alexei Razumovsky, Joseph Banks, President of the Royal Society, the academician Peter Simon Pallas—all shared a passion for botanical collecting and were engaged in power games at different levels, using botany as an instrument of influence.