Macadamias can grow into large trees (up to 20m tall and wide, although smaller varieties are available for the home gardener). However, if you’re short on space, look for dwarf forms, which are also self-pollinating and perfect for smaller backyards.
There are several macadamia varieties available to the home gardener. Select a grafted variety for quicker establishment and heavier bearing trees. Try Daddow or 816.