The soil whisperer: Su sets out to heal Kenyan gardens, one test at a time

Su Kahumbu poses for a photo on January 18, 2025 at her home in Karen, Nairobi.

Photo credit: Billy Ogada | Nation Media Group

Su Kahumbu Stephanou’s passion for soil health is deeply personal. Her journey into this field began with a harrowing experience over two decades ago.

“In 1999, my mother and I were tending to tomato plants on our farm. The plants had a pest problem, so we decided to use a pesticide. While spraying, my mother suddenly became very ill from the toxic chemicals. Thankfully, she recovered, but that was the last time I used pesticides,” Su recalls.

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