In the mid-1960s, fertilization (with nitrogen) had a breakthrough as a promising forest management method in Swedish company owned forests. The activity grew and peaked during the 1970s but then lost ground and stabilized at a low level in the 1990s and early 2000s. Over the last five years, however, interest in fertilizing Swedish forests has increased again. In this article both the forestry industry’s, and the environmental movement’s, attitudes toward forest fertilization over time are investigated. Furthermore, conflicting persistent ideas about nature and future, i.e., “figures of thought”, within interest groups, representing forestry and the environmental movement respectively, are identified and analyzed in relation to the debate on fertilization. The analysis reveals mainly three figures of thought that have influenced this debate during the period, “the idea of progress”, “the idea of decay” and “the idea of the great chain of being”. The study thus sheds light on how the relationship between forestry and the environmental movement has evolved from the 1960s until today and uncovers thought patterns that have stood, and continue to stand, in opposition to one another.