Arabian Lilac

Silver on the underside of every leaf, Vitex trifolia flickers whenever the wind moves through it. The Arabian Lilac is a fast aromatic evergreen shrub of 2 to 4 metres, grey-green above and silver-white beneath, carrying spikes of small lavender-blue flowers through the warm months.
It clips hard, takes salt-laden coastal wind and alkaline soils, and holds condition on restrained irrigation, which is why it has become a standard hedging and median shrub across the Gulf.
Arabian Lilac is among the most useful hedging shrubs in the hot coastal palette, giving silver foliage, flower and salt tolerance in one plant.