Sun The olive tree, like most fruit trees, prefers full sun (at least six hours a day). A sunny, south-facing window is ideal.
Size Although olive trees can reach up to ten feet in containers, unless your ceilings are particularly high you’ll probably want to opt for a dwarf variety. Dwarf olive trees will grow as tall as six feet, although you can keep them shorter by pruning them.
Planting Olive trees like soil that drains easily, like a cactus mix. Placing a inch or two of styrofoam, gravel, or any other kind of filler on the bottom of the pot will keep the soil well drained. (And of course, make sure your container has plenty of drainage holes.) Although olive trees grow quite slowly, you want to make sure that the container is at least several inches larger than the root ball on each side to allow the roots room to expand. Planting in a larger container will mean you’ll have to re-pot your tree less often.
Care Allow the top inch of soil in the pot to try out in between waterings. Olive trees, since they are native to the Mediterranean, are particularly suited to drier air (like the kind found in most homes), so they don’t need to be misted.