Historic gardens are a precious component of our cultural heritage and a valuable resource for understanding the past. They are tangible reflections of a society's values, beliefs, and practices offering glimpses into the aesthetic preferences, horticultural practices, and social values of bygone eras. These gardens often reflect the fusion of different cultural influences, acting as a visual tapestry of human creativity and ingenuity. To highlight the significance of historic gardens with regard to cultural diversity, this study examines the historical, cultural, botanical and architectural aspect of five famous royal gardens of Punjab that were originally created as private retreats of the Monarchs but now have been transformed into public spaces. Drawing upon archival research, scholarly literature, and site visits, the study delves into the architecture, symbolism, and historical context of each garden, revealing their unique cultural expressions. The argument put forth in the paper is that historic gardens are not just physical spaces but cultural artifacts that serve as a testament to the rich cultural diversity of the region, exposing visitors to a plethora of different artistic and cultural influences. This research highlights that historic gardens significantly contribute to cultural diversity and further facilitate cultural exchange and cultural education. The study further emphasizes the importance of valuing, preserving and valorizing historic gardens, not only for their continued relevance but for fostering cultural sustainability and enriching our collective heritage.