The plant pathogen Phytophthora cinnamomi is a significant threat to biodiversity in Australia. It can persist for decades in infested areas, and complete eradication is impossible. Hence, it is essential to investigate various management approaches to improve the healthy ecosystem functioning of Phytophthora dieback sites. This study assessed the feasibility of rehabilitating these sites using native species resistant to the pathogen. Such species could help restore the ecological functions lost due to the death of susceptible species. Eighteen rehabilitation plots were established in Phytophthora dieback sites across three reserves in the jarrah forest in Mundaring, Western Australia. Five P. cinnamomi resistant species, Acacia acuminata, A. saligna, Hakea laurina, Calothamnus sanguineus and Melaleuca seriata, and one susceptible species, Banksia sessilis were used. The study also tested whether seed pelleting could improve seed germination and seedling establishment. The results showed that seedlings of all species successfully emerged in Phytophthora dieback sites with emergence rates ranging from 23% to 88%. At nine months, survival rates for the seedlings varied from 16% to 84%. At one year, 3% to 56% of seedlings survived without any water provision. While 59% of M. seriata seedlings emerged, none survived by nine months. Non-pelletised seeds resulted in the highest seedling emergence and survival rates for most species compared to the pelletised seeds. Although emergence and survival rates of pelletised seeds were lower, values were still within an acceptable range for seedling establishment. Moreover, seed pelleting offered the advantage of ease of seed distribution and protection from predators. Overall, this study indicated the potential for rehabilitating Phytophthora dieback sites using native resistant species, which can help to restore ecological functions and services that have been lost.