Gibberellic acid (also called Gibberellin A3, GA, and GA3) is a hormone found in plants. Its chemical formula is C19H22O6. When purified, it is a white to pale-yellow solid. Gibberellins have a number of effects on plant development. They can stimulate rapid stem and root growth, induce mitotic division in the leaves of some plants, and increase seed germination rate. Gibberellic acid is sometimes used in laboratory and greenhouse settings to trigger germination in seeds that would otherwise remain dormant. It is also widely used in the grape-growing industry as a hormone to induce the production of larger bundles and bigger grapes, especially Thompson seedless grapes, and in the Okanagan and Creston Valley, it is used in the cherry industry as a growth regulator.