If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
Standard Cyclopedia of Horticulture
Brassica napus, Linn. Rape. Lvs. smooth from the first: differs from B. oleracea chiefly in habit and more deeply scalloped Ivs. There are oil-producing forms (var. oleifera, DC.). The botanical position of the rapes is doubtful.
The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.