In what zones does quondong fruit grow? How long to get fruit? How big is the bush? Are they hardy?
It appears that they are not hardy. They grow, mostly, in desert climate. They are parasitic, so they need very specific tree roots to feed off of. They can grow up to 25 feet tall. This article will help further: https://www.gardeningknowhow.com/ornamental/trees/quandong-tree/quandong-fruit-trees.htm