Aims: Iranian gardens, particularly the Fin Garden of Kashan, embody a complex system of meaning formed through the interaction of natural elements, spatial structure, and the observer’s perceptual experience; nevertheless, the semiotic and signifying dimensions of these elements have rarely been examined in a systematic manner. Drawing upon Peircean semiotics, this study approaches the Fin Garden as a cultural–spatial text and seeks to elucidate the mechanisms of meaning production across different semiotic levels. The primary objective is to analyze the role of natural elements as carriers of meaning and to examine the relationships among signs within the observer’s perceptual experience. Accordingly, the research questions address the why of the meaningfulness of natural elements and the how of the formation and stabilization of meaning within the garden’s spatial system.
Materials & Methods: This study adopts a qualitative research approach with a descriptive–analytical nature, grounded in Charles Sanders Peirce’s semiotic theory, and aims to elucidate the mechanisms of meaning production through the interaction between natural elements and the spatial organization of the Fin Garden of Kashan. Within this framework, the garden is conceptualized as an architectural–landscape text, whose constituent elements are interpreted through Peirce’s triadic semiotic system, comprising iconic, indexical, and symbolic signs. The research population encompasses all natural and physical elements that contribute to the garden’s semiotic structure and play a signifying role in its spatial organization and the perceptual experience of the observer, including water, vegetation, landform, spatial geometry, axial organization, pools, water channels, and the pavilion. Sampling is conducted using a purposive and theoretical strategy, focusing on elements that exhibit the highest semiotic capacity, a significant presence within the spatial structure, and a direct association with the symbolic concepts of the Persian garden, thereby enabling the achievement of conceptual saturation. Data are collected through documentary and library research, the examination of historical and theoretical sources, field observations, and the analysis of images, maps, and visual documents related to the Fin Garden of Kashan. The validity of the study is ensured through reliance on a well-established theoretical framework of Peircean semiotics and the triangulation of data sources (theoretical and conceptual validity), while reliability is reinforced by repeated data review, comparative interpretation across different semiotic levels, and the maintenance of logical coherence among findings. Data analysis is based on interpretive qualitative analysis and semiotic coding, conducted in several stages: first, the identification and description of spatial and natural elements; second, the extraction and coding of their meanings at the iconic, indexical, and symbolic levels; and finally, the analysis of interrelationships among signs and their organization within the garden’s spatial structure. This analytical process facilitates an in-depth understanding of how meaning is produced and stabilized in the perceptual experience of the observer and leads to the articulation of a coherent model of the semiotic system governing the Fin Garden of Kashan.
Findings: The findings of the study indicate that the Fin Garden of Kashan is not merely a physical assemblage of natural and architectural elements, but rather a complex, purposeful, and multilayered semiotic system in which meaning is produced and stabilized through the structured interaction of natural elements, spatial organization, and the observer’s perceptual experience. Data analysis within the framework of Peircean semiotics reveals that the garden’s principal elements—particularly water, vegetation, landform, and the pavilion—operate simultaneously across the iconic, indexical, and symbolic levels, with meaning emerging through a gradual process that moves from sensory perception toward conceptual understanding. At the iconic level, the visual and sensory qualities of the elements establish the initial layer of engagement between the observer and space; at the indexical level, causal and experiential relationships evoke sensations such as movement, freshness, tranquility, and spatial orientation; and at the symbolic level, natural elements, in relation to their cultural–philosophical context, convey concepts such as life, order, and spirituality. The results further demonstrate the presence of a semiotic hierarchy within the garden, whereby water and the pavilion function as dominant signs, while other elements serve complementary and supportive roles. Meaning thus arises not from isolated elements, but from a network of inter-semiotic relationships that, through spatial synchronicity and the diachronic dynamics of natural change, transforms the Fin Garden into a living, dynamic, and readable text.
Conclusion: The Fin Garden of Kashan can be understood not merely as a historical–physical artifact, but rather as a multilayered and dynamic semiotic system in which meaning is produced through the structured interaction of natural elements, spatial organization, and the perceptual experience of the observer. The findings indicate that the garden’s principal elements—most notably water, vegetation, and spatial geometry—operate simultaneously across the iconic, indexical, and symbolic levels, and that meaning emerges not as a fixed or static entity, but as a gradual process contingent upon the observer’s spatial perception. Comparison with previous studies reveals that, while the overall conclusions align with existing research emphasizing the symbolic and cultural dimensions of the Persian garden, the application of Peirce’s triadic semiotic framework enables a more systematic explanation of the mechanisms of meaning production and a rigorous analysis of inter-semiotic relationships, thereby conceptualizing the Fin Garden as a readable text structured by hierarchies of signification. Furthermore, the convergence of these findings with comparative semiotic studies of gardens in other cultural contexts suggests that, despite ideological and formal differences, garden spaces across cultures embody complex and multi-level semiotic structures. Accordingly, it is recommended that Peircean semiotics be employed as an analytical framework in future studies of Iranian gardens and, when integrated with phenomenological approaches and perceptual experience studies, provide a more nuanced understanding of the observer’s role in the reproduction of meaning. Such an approach holds both theoretical and practical potential for the design and reinterpretation of contemporary landscape spaces inspired by the Persian garden tradition.