While conducting research, the Horticulture Innovation Lab has also been providing innovative training and agricultural extension to farmers and other partners. Researchers have developed methods and materials to build capacity in topics such as iterative design, postharvest practices, scaling technologies, youth opportunities in horticulture, and gender-sensitive horticulture training. Researchers have also built curriculum for universities, and the Horticulture Innovation Lab has supported regional centers hosted at universities to expand access to horticulture innovation.

The program also leads a training and extension program called the Trellis Fund, which extends technical information to farmers and local organizations in developing countries while providing extension experience to trained graduate students.