Unsurprisingly, avocado trees are native to Mexico — the south-central part of the country, specifically. Probably because they are truly the yummiest bit of greenness ever grown, they are now cultivated commercially in tropical and Mediterranean climates throughout the world.

Do avocados grow on trees or in the ground?

The avocado is a shallow-rooted tree with most of its feeder roots in the top 6 inches of soil, so give it good aeration. Its root system is very sensitive, and great care should be taken not to disturb it when transplanting.

Does avocado grow on trees or bushes?

The avocado is a large tropical tree. It can, however, be grown indoors as an ornamental in a greenhouse or well-lighted atrium. It will be difficult to get large enough to produce fruit, and as you described may be best grown pruned as a shrub.