Boralesgamuwa, Colombo (FUA), Sri Lanka
City population: 639818
Duration: 2013 – 2015
Implementation status: Completed
Scale: Sub-microscale: Street scale (including buildings)
Project area: unknown
Type of area: Previous derelict area, Waste disposal site or landfill, Vacant or abandoned land
Last updated: May 2025

Public spaces in Colombo are disappearing due to rising land prices, causing infrastructure issues that harm citizens' health, especially in low-income areas (3). One proposed solution to address the problems caused by rapid urbanization is the creation of community gardens, which can at least improve low-income residents' diets and immune systems and address malnutrition (3). Considering the limited urban space for both citizens and other living beings, the organization Eco-friendly Volunteers decided to create a community garden. The Metta Garden in Colombo (1, 2) aims to bring back urban biodiversity through organic home gardening, generating healthy food for people and creating living space for many other animals and plants (2). Following the Buddhist concept of Metta (loving-kindness to all beings), it promotes walking meditation paths and facilities to experience nature using all five sensory organs (1), in addition to being a place for experiencing loving-kindness for both human and non-human living beings, seen and unseen (4, 5). It has become a training institute for many stakeholders seeking to grow organic food and earn a better income through the high demand for organic products (2). At the same time, it serves as a biodiversity spot, attracting butterflies, bees, and other forms of wildlife to an urban environment (2). The area is located in the middle of a semi-urbanized area, on the outskirts of Boralesgamuwa (2, 3). Maintained by a group of volunteers, it features a greenhouse and a plot of land of around 5,000 sq feet, populated with vegetable patches, a butterfly garden, flowers and rare medicinal plants (3, 4). The garden was divided into four sections representing the Buddhist elements: water, heat, air, and solid. Each section features specific plants and designs, like a pond for water, a compost pit for heat, tall plants for air, and a rock garden for solid. The layout follows a mandala design based on permaculture principles (4).

Metta Garden crops
Eco Friendly Volunteers

Overview

Nature-based solution

  • Community gardens and allotments
  • Community gardens

Key challenges

  • Environmental quality
  • Soil quality improvement
  • Green space, habitats and biodiversity (SDG 15)
  • Green space creation and/or management
  • Habitat and biodiversity restoration
  • Regeneration, land-use and urban development
  • Rewilding
  • Health and well-being (SDG 3)
  • Creation of opportunities for recreation
  • Improving mental health
  • Social justice, cohesion and equity (SDG 10)
  • Sense of community and community engagement
  • Economic development and employment (SDG 8)
  • Economic development: agriculture
  • Sustainable consumption and production (SDG 12)
  • Sustainable production
  • Food scarcity / security

Principal problems in Functional Urban Area (FUA)

  • Environmental Degradation
  • Biodiversity loss
  • Soil degradation and loss
  • Land use and Socio-economic change
  • Limited economic opportunities and local livelihoods
  • Rapid urbanization
  • Health, Well-being and Social cohesion
  • Disconnection from nature
  • Resource Scarcity and Competition
  • Food insecurity due to disruptions in food production and distribution

Key priorities

Biodiversity (conservation and/or restoration), Social Justice and community

Focus

Creation of new green areas, Creation of areas for food production (community gardens, allotments), Ecological restoration of ecosystems, Soil remediation and revegetation, Transformation of previously derelict areas, Landfill reclamation, Transformation of vacant land into green spaces, Knowledge creation and awareness raising, Protection of agroecology approaches (agroforestry & silvopastoral systems), Educational and awareness raising programs

Project objectives

To generate healthy food for people and a living space for many other animals and plants (2) To bring back urban biodiversity through organic home gardening (2) To overcome selfishness in sharing a very limited space with other living beings (2) To attract butterflies, bees, and other biodiversity to an urban setup (2) To have a space for training purposes (1) To practice Buddhist concept Metta/loving kindness to all beings through the garden design (1) To engage the community in organic waste management (2)

Implementation activities

Since the beginning, the aim has been to recreate healthy soil, plant pollinators with attractive plants, and encourage native wild plants within the plot (1). The project started with regenerating degraded soil using organic kitchen waste, green leaves and banana stems (2). In the beginning, wild plants came up naturally, which helped to understand the local floral diversity (2). Special attention was given to creating the butterfly garden by planting host plants. Then, vegetables for human consumption were planted and compost was used to encourage earthworms. Neighbours were also invited to bring their organic kitchen waste, including the community in segregating waste at the origin and encouraged them to recycle (2). This garden has two distinct components: Eco Garden, which is managed as an urban forest with food for humans, and Metta Garden which is dedicated to butterflies, bees and other insects (2) Today, it’s a registered organic certified urban garden where some of the vegetables are sold to farmers’ markets. Garden visits are also offered, and training programmes are carried out on the site for children, youth and women groups, the private sector, and government actors (2).

Biodiversity conservation or restoration-focused activities

Biodiversity restoration:

  • Rehabilitate and restore damaged or destroyed ecosystems
  • Restore species (native, endangered, or unspecified)
  • Restore native species
  • Public engagement

Main beneficiaries

  • Public sector institution (e.g. school or hospital)
  • Private sector/Corporate/Company
  • Citizens or community groups
  • Food producers and cultivators (i.e. farmers, gardeners)
  • Young people and children
  • Marginalized groups: Children, young people or youth groups , Women
  • Other

Governance

Management set-up

  • Led by non-government actors

Type of initiating organisation

  • Non-government organisation/civil society

Participatory approaches/ community involvement

  • Dissemination of information and education
  • Joint implementation (e.g. tree planting)

Details on the roles of the organisations involved in the project

Kanchana Weerakoon: leader, initiator of the project, president of the NGO ECO-V (3) Eco Friendly Volunteers (ECO-V): manager agent of the garden (3). It is formed by a core of volunteers, mainly students. (3) Kanchana Weerakoon: leader initiator of the project, president of the NGO ECO-V (3) Community/neighbours: are being involved in the production of compost and in training sessions for organic waste management and separation at source (1, 2) Private sector, governmental actors and food producers have been involved in it as a training institute to learn to grow organic food and to get a better income through in-high-demand organic food (1)

Project implemented in response to ...

... an EU policy or strategy? No
... a national policy or strategy? No
... a local policy or strategy? No

Type of enablers

NGOs/Community groups driving the implementation

Financing

Total cost

Unknown

Source(s) of funding

  • Funds provided by non-governmental organization (NGO)

Type of funding

  • Direct funding (grants, subsidies, or self-financed projects by private entities)

Non-financial contribution

Type of non-financial contribution
  • Provision of labour
Who provided the non-financial contribution?
  • Citizens (e.g. volunteering)

Impacts and Monitoring

Environmental impacts

  • Green space and habitat
  • Increased green space area
  • Achieved increased green space area
  • Increased conservation or restoration of ecosystems
  • Achieved increased conservation or restoration of ecosystems
  • Increased conversion of degraded land or soil
  • Achieved increased conversion of degraded land or soil
  • Reduced biodiversity loss
  • Achieved reduced biodiversity loss
  • Increased number of species present
  • Achieved increased number of species present
  • Increased presence and recovery of wild species
  • Achieved increased presence and recovery of wild species
  • Enhanced support of pollination
  • Achieved enhanced support of pollination

Economic impacts

  • Generation of other type of work opportunities (e.g. voluntary, work for rehabilitation)
  • Achieved generation of other type of work opportunities (e.g. voluntary, work for rehabilitation)
  • Increase in agricultural production (for profit or not)
  • Achieved increase in agricultural production (for profit or not)
  • Generation of income from NBS
  • Achieved generation of income from NBS

Socio-cultural impacts

  • Social justice and cohesion
  • Increased involvement of locals in the management of green spaces
  • Achieved increased involvement of locals in the management of green spaces
  • Increased access to healthy/affordable food
  • Achieved increased access to healthy/affordable food
  • Increased sustainability of agriculture practices
  • Achieved increased sustainability of agriculture practices
  • Health and wellbeing
  • Enhanced cognitive restoration, relaxation and stress relief
  • Expected enhanced cognitive restoration, relaxation and stress relief
  • Cultural heritage and sense of place
  • Improvement in people’s connection to nature
  • Achieved improvement in people’s connection to nature
  • Preserved spiritual and religious values
  • Achieved preserved spiritual and religious values
  • Increased appreciation for natural spaces
  • Achieved increased appreciation for natural spaces
  • Education
  • Increased awareness of NBS and their benefits
  • Achieved increased awareness of NBS and their benefits

Type of reported impacts

Presence of formal monitoring system

Yes

Presence of indicators used in reporting

Yes

Presence of monitoring/ evaluation reports

No evidence in public records

Availability of a web-based monitoring tool

No evidence in public records

Potential risks of implementation and trade-offs

Unknown

References

Mix of crops in the Metta Garden
Eco Friendly Volunteers
Butterflies in the Metta Garden
Eco Friendly Volunteers
naturescapes bannerInformation about this nature-based solution was collected as part of the Naturescapes project funded by the European Union under Grant Agreement No 101084341.