14/08/2026
TomTato is an innovative grafted plant that produces tomatoes above ground and potatoes below ground on the same plant. It is not a genetically modified organism or a true hybrid. Instead, a tomato shoot is grafted onto a potato rootstock.
Because tomato and potato both belong to the genus Solanum, their vascular tissues can successfully connect, allowing water, nutrients, sugars, and plant signals to move throughout the plant. Tomatoes develop on the upper shoots, while underground stems form potato tubers. TomTato demonstrates how grafting can combine useful characteristics of two crops and potentially improve space efficiency in food production.