Grassland restoration success hinges on suppressing weedy forbs with biomass accumulation.
The amount of plant material and litter in restored grasslands affects the growth of different plant species. In a study of fields planted with native grass seeds, researchers found that as the amount of litter and grass-like plants increased, the growth of weedy flowering plants decreased. This means that having more plant material and litter can help control unwanted plants in restored grasslands, but it might also make it harder for desired plants to grow over time.