Calamondin orange is also sometimes called miniature orange. Its fruits are as decorative as real oranges, but although they are edible they are also very bitter.
A close relative of the true orange, which can also be grown indoors, the calamondin orange is a dwarf shrub with shiny, green, leathery leaves. It bears fragrant, white flowers and tiny, one-inch oranges, often both at the same time. The fruits are edible but so bitter they are usually used only in marmalade. They can remain on the shrub for many months.
The calamondin orange is subject to spider mites in dry air and to mealy bugs and scale at any time.