Complex sentence: Orchards, by contrast, may be small or very large, like the apple orchards in Washington state; but to complicate matters, crops of oranges (as in Florida) are usually known as orange groves, and they too can be enormous.
Split into simpler sentences: Orchards, by contrast, may be small or very large, like the apple orchards in Washington (state). But to complicate matters, trees producing crops of oranges (as in Florida) are usually known as orange groves; and they, too, can be enormous.