Trees in any depth of soil are best planted in large holes to allow the development of large and strong root systems. It is important to remember that the combination of strong winds, heavy rain, shallow soil and large trees will almost always result in the loss of trees.
If your property has shallow soil it is better to plant small trees, large shrubs, palms or cycads. When planting large trees in shallow soils it is essential that you go to the expense of digging or having dug, large holes.
In Darwin this may even mean having the holes dug by jack hammer backhoe to prevent ‘welling’ during rain. It is best to plant small trees or large shrubs, fruit trees, palms and cycads in the areas with shallow soil.