[5] It is still declining, because of competition from invasive alien plants, but mainly due to the destruction of many of the remaining parts of its habitat.

Seeds of the yellow soldier are next to impossible to see in the soil or on the shoes of removalists, and germinate easily, negating the effect of the removal program.

The ability to grow back from its root system means that the entire plant must be removed from the ground, allowing other weeds to germinate.

In studies conducted, it has been found that fire increases the germination rate of yellow soldier seeds, and does not kill off any of the plants, due to its ability to grow back from its root system.

Once again, however, the ability to quickly germinate from seed means that multiple courses of spraying must be done in order to eliminate yellow soldier, and allow native species the chance to reclaim the soil.

This prevents most environment and bush care groups from eliminating the species, and thus allowing it the chance to spread further.