This experiment tested the effects of a gibberellic acid solution on the closing speed of Venus flytrap leaves' two closing phases. It was hypothesized that the acid would increase the speed of the growth-related second phase but not the first, turgor pressure-driven phase. The results found that both phases closed faster with the acid, but statistical tests found a significant difference only for the second phase, supporting the original hypothesis. The experiment could be improved by controlling environmental variables better and using more plants.