03 ยท Land & Livelihoods
An invasive weed, turned into a wage.
Prosopis juliflora, known locally as mathenge, has overrun grazing land across northern Kenya. This program backs small, locally owned businesses that harvest it responsibly and convert it into saleable products, then restore the cleared ground to pasture and farmland.
Across northern Kenya, dense thickets of prosopis have choked traditional grazing routes, dried up water points and pushed pastoralist families onto ever smaller patches of usable land. Left unmanaged, the plant forms near-impenetrable stands that crowd out native grasses and trees, making it harder for herds to move and for land to recover after drought.
The Land & Livelihoods program backs local enterprises that turn this invasive burden into a new source of income. Working with pastoralist communities and county government, these businesses harvest prosopis in a controlled way and process it into biochar, green charcoal, wood vinegar and mesquite wood pellets. These products provide cleaner, more efficient fuel and soil-improving inputs, while creating a market incentive to keep the plant in check.
Rather than clearing prosopis entirely, the program supports the creation of managed forests where the plant is thinned, pruned and replanted for ongoing harvest. This approach protects remaining vegetation, reduces erosion and maintains a steady supply of raw material.
To guide where and how harvesting happens, density mapping and erosion planning are carried out using satellite imagery and drone surveys. These tools help identify the worst-affected areas, plan access routes and prioritize sites where clearing will most benefit grazing and farmland.
All work is done in partnership with local leaders, grazing committees and county officials, so that harvesting plans align with community priorities and long-term land management goals.
Garissa County pilot
In Garissa County, the Sustainable Development Fund sits on the board of advisors for Ubuntu Farms, a local start-up granted county permission to harvest 500 acres of prosopis-overrun land as a pilot. The project focuses on turning invasive stands into biochar, green charcoal, wood vinegar and mesquite wood pellets, while opening up blocked grazing corridors and preparing cleared areas for restoration.
As an advisor, the organization helps shape harvesting plans, community engagement and monitoring frameworks, ensuring that work is carried out with pastoralist consent and in line with county land-use priorities. The pilot includes agreements to extend harvesting and restoration to additional areas if the initial phase proves successful, creating a model that can be replicated across other affected counties.
Key facts
Location
Garissa County, Kenya
Status
Pilot
Partner
Ubuntu Farms
Role
Board of advisors