What's different about Dover Heights gardens
The big one is exposure. Dover Heights sits on the same exposed ridgetops the council planted its street trees for — shallow soils over sandstone, strong salt-laden coastal winds, and the full force of the southerlies and westerlies. The original vegetation up here was low coastal heath on sandstone, and that tells you what actually thrives: tough, wind- and salt-tolerant species rather than soft ornamentals. The council's own list for the zone leans on plants like old man banksia, weeping bottlebrush, dwarf apple, scribbly gum, Sydney red gum and brushbox. Those are the things that hold up. Put a soft, thirsty plant in an exposed front bed here and the salt will tell you about it within a year.
The shallow soil over sandstone is the other thing we plan around. You can't assume there's deep ground to work with, so feeding, mulching and choosing the right plant for the spot matters more than it would in a sheltered garden three suburbs west.
And then there's the setting. A lot of Dover Heights backs onto the clifftop coastal reserves — Weonga, Rodney and Raleigh — that join up into the Bondi-to-Watsons Bay Cliff Walk, with Diamond Bay Reserve and its remnant bushland up the same stretch. In whale season you'll see humpbacks going past while you're out the back. It's a good place to do this work.