Impact Report

1 April 2025 – 31 March 2026


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Mangaroa Farms is a laboratory for regenerative living: a charitable organisation on 1,222 hectares, forty minutes north of Te Whanganui-a-Tara / Wellington, with seventeen people working towards ecological resilience, accessible kai and community education.

Farms, forests and communities across Aotearoa are being asked to adapt to a climate that's becoming less predictable, while rising costs make that adaptation harder.

At Mangaroa Farms, we keep coming back to one answer: stay anchored in care for the land and each other.

This report shares our work between 1 April 2025 and 31 March 2026. What we tried, what we learned, and what remains unresolved. We welcome all voices as we work out how to best show up for this place, now and going forward.

Localised foodresilience Land & resourceregeneration Communityconnection& education Resilient food hub& education centre

Localised food resilience

Land & resource regeneration

Community connection & education

Together: a resilient food hub & education centre

One year of work, ten years in the making.

Our first farm block was purchased in 2016, which began our stewardship journey.

Together with our community, we're nourishing people and nature.

Mangaroa Farms is committed to honouring Te Tiriti o Waitangi.

Ko Remutaka e tū ake nei, tēnei te mihi nunui
Ko Mangaroa te awa e rere ana nei, he mihi māioha
Ko te whenua Mangaroa e takoto nei, he mihi ana
Ko Waiwhetū rāua ko Ōrongomai ngā marae, Tēnā kōrua
Tēnei te mihi aroha ki ngā mana whenua o te rohe
Te Ātiawa rātou ko Taranaki Whānui ki Te Upoko o Te Ika
Tēnā koutou, Tēnā koutou, Tēnā koutou katoa!

We acknowledge the Remutaka range that shelters us, Te Awa o Mangaroa flowing between these hills, and Waiwhetū and Ōrongomai, the marae of this rohe. We pay respect to those who walked here before us.

There is much to learn from mana whenua: the mātauranga of long-standing presence and deep historical relationship with this cherished whenua. We walk alongside Te Ātiawa and Taranaki Whānui, on a journey of healing, restoration and reconnection.

Ka ora te whenua, ka ora te tangata: when the land is well, we are well.

Community & Food

Sharing the work is the fastest way we've found to make food more accessible. We can't compete with supermarkets on price, so we're welcoming participation through pick-your-own and growing co-ops.


Growing healthy kai

Local food network

Next for Community and Food

In our next cycle we'll be running a full pick-your-own season, hands-on education workshops, and more bulk meat offerings.

Ecological Resilience

We measured the whole farm for the first time, and found that these forests can't yet regenerate themselves. Birdsong is thin due to invasive species, so we're focusing our work there.


Establishing our baseline


Earth Vitality Report 2026 by Groundtruth

Water quality in te Awa o MangaroaMid-to-upper range for the region
Fair
Forest coverAlmost every steep slope is covered by trees
Well matched to our bioregion
Soil fertility and organic matterWithin normal agricultural levels
Workable
Soil biologyWorm counts are poor to moderate
Thin
UnderstoreyFavoured plants are low
Under pressure
BirdsongTūī are doing well, and kererū are scarce up the valley
Under pressure

Verified by Groundtruth + Hill Laboratories

Reforestation

Predator free

WHY PREDATOR MANAGEMENT IS CRUCIAL

The bush can't regenerate while browsers and predators are in it. Remove those, and everything else starts to return: seedlings, understorey,  and birds.

Invasive species come down Seedlings survive Understorey thickens Birds nest again Invasive speciescome down Seedlingssurvive Understoreythickens Birdsnest again

…and around again. It compounds, and sensors are now watching.

01Invasive species come down
02Seedlings survive
03Understorey thickens
04Birds nest again
…and around again. It compounds, and sensors are now watching.

Next for Ecological Resilience

For the year ahead, we're planting 16,000+ more trees, the peat swamp is coming out of grazing, and involving our local community in predator management efforts.

Events & Education

Events are how people find this place; the learning pathway is why they stay.


Learning pathways / depth over reach

Different depths of learning

536came through a hands-on learning pathway
130stayed more than four hours
9stayed more than two hundred hours
4walked into a farming career pathway

Learning on the land

“As a parent, I wanted my children to grow up learning from the land, guided by wonder, and surrounded by community. Earth School responds to that desire.”

Earth School Parent

Convening together

Housing & Facilities

Next for Events and Education

In the year ahead we're turning one-off school visits into ongoing relationships, opening more common spaces for people to create with, and readying the farm's homes for more people to live and work here.

Mangaroa Farms is a laboratory for regenerative living.

We're a charitable organisation on 1,222 hectares, forty minutes north of Te Whanganui-a-Tara / Wellington in Aotearoa New Zealand, with seventeen people working towards ecological resilience, accessible kai and community education.

Mangaroa Farms began as a seed in 2018, two years after the first farm block was purchased, when the Monahan family asked how they might live more deeply in service to the land. They gifted the farm into Biome Trust, and it has grown from there. 

An honest accounting

Where we're falling short — and how we're responding

Where our results fall short of our aspirations, we're using those gaps to guide the next stage of the work.

Affordable kaiOur food is still too expensive for many households without subsidy.
Making food more accessibleTesting lower-cost pathways including pick-your-own harvests, community growing, food partnerships and more efficient production.
Ecological restoration & forest healthTree planting is outpacing our ability to demonstrate long-term establishment, while browsing and predators remain severe enough that parts of the native forest are failing to regenerate.
Moving from planting to regenerationInvesting more in plant survival, pest control, forest monitoring and long-term ecosystem recovery, rather than measuring success by planting numbers alone.
EducationOne-off school visits have not produced the depth of relationship we hoped for.
Building deeper learning relationshipsShifting from one-off educational visits toward sustained programmes, repeat engagement and practical skills developed over time.
Economic resilienceSome activities currently consume substantially more resources than they generate.
Strengthening the farm's economic resilienceExamining which activities can become financially self-sustaining, where subsidy is justified by public benefit, and where our operating model needs to change.

And across everything

Improving our evidenceEstablishing clearer baselines and long-term monitoring for soil, water, biodiversity, carbon and community outcomes, so we can distinguish activity from genuine change.
Preparing for a less predictable climateInvesting in water resilience, peatland restoration, diverse food systems, renewable energy and land-management practices that reduce vulnerability to drought, flood and rising input costs.
Sharing responsibility more widelyDeepening relationships with mana whenua, neighbours, farmers, educators, volunteers and community partners, so that regeneration is not something Mangaroa attempts alone.

Te Tiriti o Waitangi

Tangata Tiriti

Mangaroa Farms remains committed to upholding the mana of Te Tiriti o Waitangi, and learning how to embed this in our daily work. We're working towards this by engaging closely with our iwi allies so that Mangaroa Farms supports the uplift of Māori voices, projects and worldviews.

We approach this with humility and a commitment to meaningful action, grateful for the relationships that continue to guide our practice. We acknowledge with gratitude Jan Hania, Papawhakaritorito Trust and Erin Matariki Carr for their ongoing support, and for generously sharing their mātauranga with us.

Looking ahead

Our focus for FY27

  1. Restore ecological function, not just undertake restoration activity. Take the peatland out of grazing, begin hydrological restoration, and shift our measures toward plant survival, natural regeneration, browsing pressure and biodiversity response.
  2. Build practical resilience into the farm. Implement the first stage of landscape-scale water storage, expand on-farm solar, and pilot biodiesel and ethanol production for suitable farm uses.
  3. Strengthen local food resilience and access. Transition the market garden towards hardier perennial species, run a full pick-your-own season from October to April, and begin establishing the edible farm loop, tracking participation, food harvested, labour efficiency and affordability.
  4. Measure the health of the land more clearly. Bring soil, water, bird, pest and sensor data into a single ecological monitoring framework, so we can track whether the farm is genuinely improving over time.
  5. Deepen participation and improve long-term viability. Create more opportunities for people to learn, gather, live and contribute at Mangaroa, while improving the financial resilience of the farm's core enterprises and being clearer about where philanthropic subsidy is creating public benefit.

With thanks

Our ecosystem partners

— predator catches logged on Trap.NZ


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Mangaroa Farms

Community resilience hub and education centre in Te Awa Kairangi / Hutt Valley bioregion.

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98 Whitemans Valley Road
Te Awa Kairangi, Upper Hutt

Mon–Fri 11am–5pm
Sat 9am–5pm · Sun 10am–5pm

welcome@mangaroa.org

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Mangaroa Farms Ltd is a charitable company wholly owned by Biome Trust Aotearoa