In this study we assess sediments dry bulk density (DBD), organic matter (OM), carbon (C) and nitrogen (N) content, and ecosystem stocks (biomass +sediment) of an understudied saltmarsh species Schoenoplectus validus in restored Mungalla wetland and compared these traits for the same species from a natural system; Cape Upstart National Park, of Queensland, Australia using standard Blue Carbon Manual protocols. The DBD and OM in sediment of restored S. validus meadows was 1.3-fold and 1.2-fold lower than natural S. validus meadows. Interestingly, the sediment C content in restored meadows was similar with the sediment C content in natural meadows. Lower contribution from sediment OM resulted in 1.6-fold lower total ecosystem C stocks in restored meadows at Mungalla compared to natural S. validus meadows. The contribution of plant biomass C stocks (14.55%) to the total ecosystem C stocks was 1.1-fold lower in restored meadows than natural meadows (16.52%). The total ecosystem N stocks was 1.3-fold lower in restored meadows at Mungalla compared to the natural meadows at Cape Upstart. These findings highlight that the ecosystem services of restored saltmarsh meadows would take longer to achieve similar capacity of carbon and nitrogen storage compared to current natural systems.