Seeds are raised in local nurseries
All trees start their life in local nurseries in Tanzania, run by our partners.
Here, species are selected that:
- Are adapted to local conditions
- Support biodiversity
- Can thrive long term without artificial support
Methods with documented impact
We do not plant trees as symbolism, but as long-term, measurable climate action focused on biodiversity and local communities
From seed to forest – the process step by step
Planting in dedicated areas
When the trees are strong enough, they are planted in selected areas.
We ensure that:
- The soil is suitable
- The local community is involved
- There are clear agreements on protection and care
We do not plant monocultures, but varied forest systems.
Care, monitoring and replanting
All trees planted through Treesy are:
- Cared for and monitored at least 4 times per year
- For a minimum of 3 years after planting
- Replanted if they do not survive
Tree planting at Treesy does not stop the day the tree goes into the ground.
Varied forest systems
We do not plant monocultures, but create living, resilient forests with room for biodiversity.
Three main groups of trees – balance instead of plantations
To ensure climate impact, biodiversity and local value, we plant trees in the following distribution:
1/3 canopy trees
Large canopy trees that:
- Build high biomass
- Store large amounts of CO₂ over time
- Create shade and stability in the forest
1/3 biodiversity-supporting trees
Native species that:
- Provide habitats for birds, insects and mammals
- Strengthen ecosystem resilience
- Maintain natural balance
1/3 fruit trees
Productive trees that:
- Provide access to food
- Produce fruit that can be sold locally
- Create economic incentives for protection
This balance is deliberately chosen to avoid uniform plantations and ensure a living, resilient forest.
The tree species we plant
Treesy plants a wide range of tree species to support climate, biodiversity and local needs.
Acrocupus fluxinfolliousN
Albizia gummiferaN
Cassia spectabilisN
Cupressus lusitanicaE
Ficus sycomorusN
Ficus surN
Grevillea robustaE
Leucaena leucocephalaN
Markhamia luteaN
Newtonia buchananiiN
Persea americana (avocado)E
Rauvolfia caffraN
Syzygium guineenseN
Tabernaemontana stapfianaN
Bridelia micranthaN
Cordia africanaN
Croton megalocarpusE
Entada gigasN
Podocarpus usambarensisN
Syzygium cuminiN
Prunus africanaN
N = native | E = non-native, but non-invasive
The species list is updated continuously as new plantings are made.
Every tree is individually registered and geotagged
All trees planted through Treesy are individually registered, geotagged with GPS coordinates and connected to a specific planting area.
Where your trees stand
Which area they are planted in
Follow development over time
Why do we plant in Tanzania?
Faster growth and higher potential
Trees in a tropical climate:
- Grow faster
- Often build more biomass
- Can therefore absorb more CO₂ over time
More impact per krone
Tree planting is cheaper per tree than in Europe, which means:
- More trees
- Greater total impact
- Better use of your climate action
Social impact
We strengthen the economy and living conditions in the Global South:
- Create local jobs
- Provide access to fruit and improved soil
- Strengthen local communities economically and environmentally
Local presence and responsibility
One of Treesy's co-owners lives in Tanzania. That means we:
- Are on the ground ourselves
- Participate in planting and monitoring
- Have direct dialogue with our partners
Instead, we prioritize transparency, documentation and physical presence.
What are carbon, CO₂ and CO₂e?
Carbon
An element that is the building block of all living material, including trees.
CO₂ (carbon dioxide)
A gas formed when carbon binds with oxygen. CO₂ is what trees absorb through photosynthesis.
CO₂e (CO₂ equivalents)
A unit of measurement that combines all greenhouse gases, such as methane and nitrous oxide, into one common metric.
How do we calculate? (conservative approach)
Our calculations
Our estimates are based on:
- Consumption-based averages from CONCITO (approx. 13 tons CO₂e per Dane per year)
- Conservative assumptions about trees' CO₂ absorption
We use a cautious average of 100 kg CO₂ per tree over its lifetime.
Many tree species, especially in tropical climates, are expected to absorb more. We have deliberately chosen to calculate conservatively because we would rather plant two trees too many than one too few.
Ready to plant trees?
Choose a package and become part of our mission to create living, resilient forests in Tanzania.