Insights · 30 September 2025 · Planted
Wamberal and Stockton are pushing ahead with sand nourishment and rock revetments. Behind the engineering, dune and backshore planting is what keeps the sand where it's been put.
The NSW coast has had a busy year of decisions. Central Coast Council resolved in September to push ahead with coastal-protection works at Wamberal - sand nourishment underpinned by a sloping rock revetment - while Stockton’s ten-year management plan locks in mass sand nourishment with regular top-ups, backed by a substantial NSW Government commitment. The engineering gets the headlines, and fairly so. But sand and rock are only half of how a beach or dune holds.
Sand that isn’t held just moves again
Nourishment puts the sand back. Vegetation is a big part of what keeps it there. Dune grasses and backshore species trap windblown sand, build the profile back up and bind the surface against the next blow - the slow, biological half of coastal resilience that runs for years after the dredge has left.
Where planting fits the coastal job
- Backshore and dune stabilisation. The right coastal species, established into a protected surface, hold the rebuilt profile instead of letting it walk off in the wind.
- Surface protection while it establishes. Natural-fibre matting does the early soil-holding on exposed faces until the cover knits in.
- Work to the management plan. Coastal jobs sit inside formal management programs and conditions - the planting has to meet them, not just look green.
The takeaway
Hard structures and nourishment buy time and stop the worst of it. Planting is what converts that into something that lasts. The councils investing in the sand are also the ones who’ll need the vegetation to keep it - that’s erosion-control and revegetation work, side by side.
It’s exactly what we do across NSW: erosion control and revegetation, matched to the site. Got coastal works coming up? Tell us about it.
