The rutabaga or Swedish turnip is thought to have originated in the Middle Ages. It is a cross between the cabbage and turnip. While the rutabaga resembles the turnip, there are distinct differences. The rutabaga has smooth, waxy, blue- green foliage. The thickened root of most varieties is yellow- fleshed.
Most turnips are white-fleshed and have rough, hairy leaves.
The rutabaga is a cool, long-season crop. It performs best when planted in the summer for a fall crop. After germination, thin to 6 to 8 inches between plants. The best variety for the midwest is 'American Purple Top'. The large roots have a purple-skinned top.