Turnip's are great, there are several kinds. I usually plant purple top turnips, the roots are better. I even mix turnip top and bottoms with some mustard greens, add a fried pork chop and some good corn bread(corn bread thats only about a inch and a half thick) not the thick stuff. When theres not much to the tops, then you can just cook the roots. As for canning, we just pick a big pot full, cookem and you eat some and freeze some. Or you can just pick some, wash them, drain the water off, cut them up,and put them a gal freezer bag and freeze, then you can take them out of freezer and cook them.