Susan Wanjiru Mwangi (Institute for Social Transformation – Kenya)
It all began with a simple yet profound conversation in an ecology class. As we delved into the pressing issues of climate change, the students and I reflected on the ways we, as individuals and as a community, were contributing to environmental challenges. One recurring topic stood out: the University’s practice of burning green waste. The sight of smoke drifting into classrooms, disrupting afternoon lessons, became a sign of a larger problem. This harmful practice was not only polluting the air but also adversely affecting health and the environment. It was a wake-up call that spurred a group of passionate students and staff into action.
Recognizing this as a social and environmental challenge, the students proposed a long-term, sustainable solution. With their growing eco-consciousness and newly acquired skills in social entrepreneurship, they sought to address waste management holistically. Inspired by a Laudato Si Movement training on sustainable living and circular economy, discussions evolved into practical solutions. The training emphasized creating value from waste, leading to the implementation of waste segregation practices. This coincided with a national policy requiring individuals and organizations to separate waste at the source. Motivated by this alignment, the group took bold steps to turn their ideas into action.
Today, the University has embraced waste segregation and composting. Organic waste is now transformed into nutrient-rich compost, while other materials like paper and plastic are recycled through partnerships with external organizations. The initiative has saved resources, generated modest income for the university, and fostered a culture of sustainability among students and staff. This transformational journey led to the establishment of the Laudato Si Garden—a project born out of necessity, innovation, and faith.
The Birth of the Laudato Si Garden
For years, the University’s expansive 100-acre land had remained underutilized, a silent testament to untapped potential. The composting project became a catalyst for change, sparking the idea of using a portion of the land to create a sustainable garden. The Season of Creation—a period dedicated globally to environmental stewardship—provided the perfect moment to bring this vision to life. With collaboration from movement members, staff, and students, the Laudato Si Garden was established on half an acre of land.
The garden now thrives with dense, nutrient-rich vegetables, including spinach, sukuma wiki, and traditional greens like managu and terere. These vegetables are not only feeding the university community but also impacting the surrounding neighborhoods. For many staff members, including gardeners and security personnel, the garden has significantly reduced household food expenses. With access to fresh, healthy produce, they can redirect their savings toward other developmental needs. One gardener shared how the vegetables have eased the financial strain of feeding his family, allowing him to invest in his children’s education.


(left) Waste to worth: the composting project at Tangaza and the ready compost. (Right) Waste to worth: the Laudato Si’ Gerden at Kisaju. The different varieties of the leafy vegetables only after one month and they are ready for harvest.
A Hub of Learning and Opportunity
The garden is more than just a source of food; it has become a living classroom. Students, deeply involved in the garden’s development, have gained hands-on experience in integrated farming practices. They have learned the importance of biodiversity, the benefits of natural farming methods, and the interconnectedness of ecological systems. This experiential learning has not only enriched their academic journey but also empowered them to become advocates for sustainable living.
The space has also provided opportunities for youth engagement. Young people are actively involved in various activities, from planting and harvesting to composting and irrigation management. These experiences are equipping them with practical skills that can be applied beyond the University. The garden’s success has inspired discussions about expanding its scope to include training programs, workshops, and community outreach initiatives.


Impact and Hope
The Laudato Si Garden stands as a beacon of hope and renewal. Its impact extends beyond food production. The project has improved the University’s biodiversity, attracting pollinators and restoring ecological balance. It has also fostered a sense of community, bringing together students, staff, and local residents in a shared mission of sustainability.
Perhaps the most profound impact lies in the shift in mindset. What began as a response to a waste management challenge has evolved into a movement of eco-consciousness. The University community has come to embrace the philosophy that “waste is never waste until you waste it.” This transformation reflects the Biblical truth that at the appointed time, God makes all things new.


Conclusion
The story of the Laudato Si Garden at Tangaza University is one of resilience, collaboration, and innovation. From a neglected piece of land and a smoke-filled problem to a thriving hub of sustainability and learning, this journey showcases the power of turning challenges into opportunities. Today, the garden is not just feeding people with healthy, naturally grown food; it is feeding minds and spirits, inspiring hope for a greener, more sustainable future.
As we look ahead, the Laudato Si Garden holds the promise of becoming a center for creativity, recreation, and ecological education. It serves as a reminder that even the smallest actions, when guided by faith and purpose, can lead to profound transformation. Together, we can continue to nurture this garden of hope, ensuring that its impact resonates for generations to come.
Susan Wanjiru Mwangi is an educator at Tangaza University, in the Institute for Social Transformation (IST) – founded and directed by the Comboni Missionaries – and a passionate advocate for Pope Francis’ Laudato Si’ message. She coordinates Laudato Si’ activities at the University, playing a pivotal role in the development of impactful projects. Among her notable contributions are the “Waste to Worth” composting initiative at the university and the Laudato Si’ garden in Kisaju.
