Data collection about the effects of fire-suppressing Class A foams on tree growth parameters (height, biomass) and resistance (health) parameters (indicative of cellular damage and stress). This study delves into the complex relationship between foam agents and the well-being of trees, providing essential insights into the impact of firefighting measures on the ecosystem. The collected data serves as a valuable resource for informed decision-making, balancing the necessity of fire suppression with the preservation of the natural environment.