Wetland ecosystems effectively remove and store sediment and non-point source pollution, thereby significantly improving surface water quality. In wetlands, invasion by non-indigenous plant species poses a significant management problem because exotic plants can be transported by water, establish on new sediments, and maximize competitive characteristics to dominate new areas unchecked by limitations such as herbivores found in their native habitats. The non-native plant species, French broom (Genista monspessulana), a nitrogen fixer, has established itself along the lake margin and creek banks within Jasper Ridge Biological Preserve and has begun propagating along Corte Madera Creek and into upland areas. An understanding of the local impacts of broom on the environment is important in order to extrapolate to larger ecosystem effects of widespread broom encroachment. This study investigated broom's impact on the local environment under different management strategies in order to evaluate the effectiveness of various manual control regimes for protecting Jasper Ridge's wetland and upland areas from French broom. Cardboard cover was the only treatment beyond manual pulling to have a significant impact on broom recruitment. One-time removal of mature broom led to additional population growth, whereas follow-up removal of new seedlings began to deplete the seed bank. New seedlings may begin utilizing surface water rapidly. The results also showed that within a growing season in Jasper Ridge, French broom establishment and removal does not significantly contribute to changes in nitrogen levels but does alter phosphorus levels. Together, these results suggest that one-shot management efforts could cause a larger problem. To be successful, broom control requires continuous removal until the seed bank is depleted which could then set the stage for the strong possibility of restoring native vegetation.