Granny Whale's Garden: Tending the Ground Between Generations A Natural Leaders NZ Project | Mangaroa Farms, Te Awa Kairangi, Wellington A programme of Every Body is a Treasure Trust (CC56586)

Project Story

Fun fact: there are over 6,000 types of mammals and only 6 experience menopause. Humans and five species of toothed whale. The grandmother hypothesis holds that women stop competing reproductively so they can become something more valuable to the group: the keeper of knowledge. The one who remembers where the food was in the hard years. The one whose presence, study after study confirms, measurably improves the survival of the young around her.

Researchers studying 378 orca grandchildren found that young whales who lost their grandmother were 4.5 times more likely to die. Not because grandmothers are sentimental. Because they know things nobody else in the group knows yet. (PNAS, 2019)

The orca grandmother does not just teach. She leads the pod to where the food is. She generates abundance and shares it outward until the whole pod is fed.

The farm is our grandmother.

A regenerative flower and food farm at Mangaroa Farms in the Mangaroa Valley, Upper Hutt, tended by sequential cohorts of Gateway students, will generate flowers, seeds, bulbs, tubers, and grafted trees in quantities that exceed what any one group can use. That abundance moves outward. Flowers go to retirement village residents. Plant material travels with grandmother volunteers to primary schools across the Wellington region, where food and flower forests are planted and left to grow for seven generations. Each school that receives a forest adopts a local retirement village and commits to bringing flowers to residents. The care compounds. The flower farm does not have to expand for the impact to grow.

This is not a gardening project. It is a circular community-building model with a regenerative farm at its heart, Nonviolent Communication as its shared language, and three generations learning to take care of each other and the land at the same time.

Our vision is a regenerative food and flower forest in every school in the Wellington region.

Who We Are

Mandi Lynn is the founder of Natural Leaders NZ and the lead facilitator of this project. She arrived in New Zealand in 2001 and her first job was managing a retirement village as a nurse manager. In her mid-twenties, she sat with residents who had few visitors, watched knowledge and stories go unshared, and felt the particular sadness of witnessing a generation held at arm's length from the rest of life.

Twenty-five years later, Mandi is a menopausal woman whose career wound through developing a 12-acre organic blueberry farm and working as a body-positive activist. She has spent years celebrating women of all shapes, sizes, and stages of life, including making a multi-award-winning film about it. She has watched how elder women are pushed to the margins of mainstream society at exactly the moment their wisdom is most needed. When she recently discovered the grandmother hypothesis, something clicked into place. It was not just an interesting piece of science. It was a blueprint for everything she had already been trying to build.

This project is the place where those threads come together. Her experience of menopause and what it means to step into elderhood. Her decades of working with young people who have been written off. Her commitment to the regeneration of land and community. And the seed planted in a retirement village in 2001, when she first understood what it costs everyone when we keep the generations apart.

Granny Whale's Garden is personal. It is also necessary.

Our Mission

Every Body is a Treasure Trust is all about creating compassionate connections to self, our bodies, to community, and to land. We are a multi award-winning charitable trust with nine years of experience working with young people not being reached by conventional systems. Natural Leaders was co-founded by Mandi Lynn alongside a team from Ngati Toa Rangatira, whose values and tikanga are woven into the foundation of how we work with rangatahi and with the land.

Natural Leaders is our ecotherapy, Nonviolent Communication, bushcraft, and permaculture programme that seeks to grow future leaders who think seven generations ahead. We teach regenerative food forest design, soil science, composting, and the practical growing skills that keep communities fed from the land for generations. We work with teenagers who have been told they are hard to reach. We find, over and over, that they are not. They just needed something real to do.

Background and Problem Statement

The young people

New Zealand ranks last out of 36 OECD countries for child and youth mental health, and 32nd overall for child wellbeing. (UNICEF Report Card 19, May 2025) Our youth suicide rate is the single highest of all analysed countries, almost three times the average for high-income countries. (UNICEF/RNZ, 2025)

One in six young adults is currently not in employment, education, or training. The NEET rate rose to 11 percent for youth aged 15 to 24 and 16.4 percent for young adults aged 25 to 34 in 2024, and it is still climbing. (BERL, 2025)

At the same time, 88 percent of NZ companies expect to slow entry-level hiring within three years, and 53 percent have already removed roles entirely due to AI. (IDC/Deel, IT Brief NZ, 2025) The jobs that were meant to be the first rung of the ladder are being automated before young people get a chance to stand on them. These are not young people who gave up. They are young people who were never given ground to stand on. The skills that cannot be automated are the ones that grow things, build things, and care for people. That is what we teach.

The elders

At the same time, loneliness among older adults is a serious and under-acknowledged crisis. A large survey of assisted living residents found that 55 percent experienced loneliness and 45 percent felt depressed at least sometimes, yet 83 percent expressed strong interest in nature-based activities and most could not access them on their own. (ScienceDirect, 2025)

Two crises sitting side by side in every Wellington community. A generation of young people who have nowhere to go. A generation of elders sitting on exactly the knowledge those young people need, with nowhere to send it. The grandmother hypothesis tells us these two groups need each other at a biological level. Our communities have just forgotten how to put them in the same room.

The Model: Three Phases

Phase 1: Build the Farm and the Programme

Sequential cohorts of Gateway students from local high schools come to Mangaroa Farms each term and work on whatever the flower farm needs that season. Soil preparation, composting, planting, grafting, harvesting, bouquet making. The farm is the living curriculum. It tells the students what comes next.

Each student grafts six trees: one to take home, five banked for future food forests at primary schools. Dahlia tubers and daffodil bulbs are planted in the same beds, flowering across two seasons from the same ground. Students watch Ma Earth Learning Lab and permaculture videos each morning, followed by a discussion circle, before heading out to work the land. Nonviolent Communication is woven through every session as the relational backbone of the group.

Flowers from the farm are split two ways. 30 percent are made into bouquets and delivered by Gateway students to residents at local retirement villages. 70 percent are sold, with revenue covering the shortfall in facilitator salaries that the Gateway programme fee does not reach. The goal is a farm that funds itself.

While the programme is being refined, we recruit recently retired grandmother volunteers through Lions clubs, Rotary, gardening clubs, and flower arranging clubs. We are looking for women with a love of flowers, project management experience, and the desire to build something that lasts. All grandmothers learn Nonviolent Communication as part of their onboarding, giving them the shared language to engage robustly and compassionately with schools, students, and retirement village communities.

Phase 2: The Grandmothers Bridge the Gap

Grandmother volunteers are paired with a Gateway cohort. They become the living bridge between the farm and the schools. They fundraise, gather additional perennial plant material from community gardeners and gardening clubs, and identify primary schools that are ready to receive a food forest. They carry the grafted trees, flower seeds, bulbs, and tubers from the farm to the school. They carry the relationships too.

Phase 3: Plant a Food Forest at a School

Gateway students and grandmother volunteers plant a flower and food forest together at a primary school. Our pilot is Earth School Aotearoa at Mangaroa Farms. From there the template travels. Each receiving school makes two commitments: regenerative management of the forest, and adoption of a local retirement village. 50 percent of the flowers they grow go to retirement village residents. 50 percent are kept or sold at the school gate to fund the garden's ongoing care. The school is not dependent on outside funding. Half of what it produces pays for the other half. As more schools receive forests, more retirement village residents receive flowers and visits. The delivery of care scales without the programme having to scale with it.

Why This Works

A 2024 study published in Nature found that the five toothed whale species that experience menopause live around 40 years longer than other female whales of a similar size. By living longer without extending their reproductive years, they have more time to lead, teach, and share resources with younger generations. The same pattern holds in humans. In pre-industrial Finnish and Canadian communities, children with living grandmothers were significantly more likely to survive to adulthood. (National Geographic, 2022)

Body doubling, the simple act of working alongside another person, is one of the most effective tools for people whose nervous systems struggle with self-regulation, task initiation, and sustained focus. For many of the young people we work with, who carry diagnoses of ADHD, anxiety, and trauma, working side by side with an elder in a garden may be one of the most powerful therapeutic experiences available to them. And for the elder, the reverse is equally true. What looks like gardening is also, in the language of neuroscience, co-regulation. Two nervous systems, settling each other down, one row at a time.

Research from Rutgers University found that 81 percent of older adults reported feeling less depressed after receiving fresh bouquets, and that flower recipients actively widened their social networks and re-engaged with their communities. A bouquet is not just flowers. It is a reason for a conversation, a point of pride, and proof that someone thought of you.

NVC runs through all of it. Every person who passes through Granny Whale's Garden, whether 15 or 75, learns the same foundational language for being in relationship with other people and with the land. It is what makes the community robust enough to last.

This is not a niche idea. It is the design spec for our species. We are just building the garden that honours it.

Human Needs This Project Meets

Granny Whale's Garden is designed, through the lens of Nonviolent Communication, to meet deep human needs across all generations it touches. These are not incidental benefits. They are the point.

Connection: Belonging, community, inclusion, intimacy, closeness, warmth, companionship Meaning: Purpose, contribution, legacy, growth, creativity, awareness, learning Autonomy: Self-worth, choice, identity, confidence, empowerment, agency, self-expression Physical wellbeing: Nourishment, movement, rest, sustenance, contact with nature Interdependence: Giving, receiving, reciprocity, mattering, being seen, being needed, mutuality Celebration: Joy, play, aliveness, appreciation

When a primary school child carries a bouquet grown from seeds banked by a teenager, at a farm, through a relationship built by a grandmother volunteer, to a retirement village resident who has been waiting for a visitor, almost every need on this list is being met at once. That is not a coincidence. It is what the programme is designed to do.

How We Will Track Impact

We use pre and post self-assessments adapted from validated wellbeing scales. We will track: wellbeing indicators for Gateway students, grandmother volunteers, and retirement village residents; number of bouquets delivered by stream; trees grafted and banked; seeds, bulbs, and tubers stored; schools with food forests and adopted villages; flower sale revenue reinvested; and qualitative feedback gathered from all groups each term.

We know the numbers matter to funders. It is the stories that matter to the heart. We will collect both.

Our Experience

Natural Leaders NZ has nine years of experience working with young people who had been failed by conventional systems. One of our students, Mav, came to us at 12 years old having been involved in four serious crimes, expelled from school, living on the streets, and being actively recruited by a gang. After nine months in the intensive level of our programme, a fellow student nominated him for Wellington Youth Volunteer of the Year. He won.

For every dollar invested in Natural Leaders, it is estimated we saved the country fifteen, with $1,087,608 in downstream costs avoided in one cohort alone, across youth court, police, incarceration, rehabilitation, and social work.

We have planted a syntropic food forest at Maidstone Intermediate School in Upper Hutt. A single post on the Upper Hutt Community Facebook page generated 220 likes and more than 60 volunteers. We won the Wellington Airport Regional Community Rising Star Award in 2025. Our Nature and Neuroscience programme for teacher aides and youth workers sold out its pilot cohort before the date arrived. We hold active partnerships with Mangaroa Farms, Ngati Toa Rangatira, Taita College, Heretaunga College, Wellington High School, and Cahoots Workshop.

Granny Whale's Garden is the next step in work we have already proven is worth doing.

mandi@naturalleaders.nz | naturalleaders.nz | Every Body is a Treasure Trust (CC56586)