Exposed ridgetops & shallow soils over sandstone

Recently Planted Sydney RedgumThe exposed ridgetops are the dominant ridge-lines of Charing Cross, Bondi Junction, and Bondi with their exposure to southerly and westerly winds and Dover Heights where the ridgetops experience strong salt laden coastal winds.

The areas of shallow soils over a bedrock of sandstone are found throughout Bondi Junction and the streets of Dover Heights, Waverley and Bronte. The original vegetation of these areas consisted of low heath plants growing on sandstone.

Both areas have minimal or restricted soil depth for root growth.

Streetscape Character

The streets are extremely varied from the wide grassy nature strips in Dover Heights and parts of Bronte to the concrete or asphalt footpaths in the streets around the commercial zones of Bondi Junction and Charing Cross.

Dominant Trees

Common name Botanical name
Coastal Banksia Banksia integrifolia
Bracelet Honey Myrtle Melaleuca armillaris
Swamp Paperbark Melaleuca quinquenervia
Bottlebrush Callistemon 'Kings Park Special'
Watergum Tristaniopsis laurina
Casuarina
Casuarina glauca

Issues and Considerations

  • Medium sized native trees may be more adaptable to soils with minimal water and nutrient retention
  • Poor drainage likely in areas of exposed bedrock

Strategies

  • To use species that are tolerant of periods of drought and restricted root run
  • Generally improve the planting conditions of all new trees to increase the survival rate of tree planting

Actions

  • Determine planting locations on the tree database that are exposed to strong winds or known to have poor soil depth
  • Investigate the use of improved watering methods by incorporating more water inlets
  • Investigate the use of wider planting holes and structural soils in concrete and asphalt footpaths
  • Encourage the use of permeable paving and paving surfaces for concrete or asphalt surfaces

Preferred Tree Species

Size Common name Botanical name
Small

(to 6 metres)
Dwarf Apple Angophora hispida *
Weeping Bottlebrush Callistemon 'Dawson River'
White Feather Honeymyrtle Melaleuca decora *
Prickly Paperbark Melaleuca styphelioides
Medium


 (6 to 12 Metres)
Purple-Leafed Willow Myrtle Agonis flexuosa 'After Dark'
Lemon Myrtle Backhousia citriodora
Old Man Banksia Banksia serrata
NSW Christmas Bush Ceratopetalum gummiferum
Tuckeroo Cupaniopsis anacardioides
Blueberry Ash Elaeocarpus reticulatus
Scribbly Gum Eucalyptus haemastoma
Cheese Tree Glochidion ferdinandi *
Riberry Syzygium luehmannii
Watergum Tristaniopsis laurina
Waterhousea Waterhousea floribunda
Large


(over 12 metres)
Sydney Red Gum Angophora costata
Cook Island Pine or New Caledonia Pine
Araucaria columnaris *
Norfolk Island Pine Araucaria heterophylla
Port Jackson Fig Ficus rubiginosa
Jacaranda Jacaranda mimosifolia
Brushbox Lophostemon confertus
Fine-leafed Paperbark Melaleuca leucadendra *

*= may only be available from specialist native nurseries

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