Most of the regeneration work on Red Hill involves removing invasive plants which form dense, shrubby clusters and destroy the open woodland character of the Park. These weeds include common garden plants such as Firethorn, Cotoneaster and Privet, and also natives not local to Canberra, such as Cootamundra Wattle. They occupied about 30% of the understory when regeneration began in 1988. Once they are removed the original trees, grasses and wildflowers rapidly regenerate.
Erosion happens when removal or trampling of vegetation enables rainwater runoff to remove soil and carve gullies. Fortunately there is not much erosion on Red Hill. The Red Hill Regenerators Parkcare group is carrying out trackwork on steep tracks where erosion has occurred.