Coastal Project: Planting Vetiver Hedges into Sand

With a bit of elbow grease, composted cow manure and some Vetiver slips we planted successive rows of Vetiver today along a sand embankment.
The drop is significant, as the photos below show. So too is the exposure as the rock piles at both ends indicate.
Since Vetiver roots can go down 2 metres they should hold the sand together, hopefully before the tides encroach