If youâre a gourmet gardener whoâd like to give some Asian vegetables space in your yard, check out the specialty seed catalogs for bok choy, pak choy, Chinese broccoli, Chinese cabbage (many kinds), Chinese mustard, daikon radish, garland chrysanthemum, tyfon and snow peas.
In general, do not use a comma before and or or in a series: The snow stalled cars, buses and trains. Use commas to separate elements in a series, but do not put a comma before the conjunction in a simple series: The flag is red, white and blue.
When you have three or more items in a series, you generally use a comma before the coordinating conjunction. Some handbooks and style guides will tell you that this comma is optional, but my advice is to put it in.