Perennial Vegetable Crops
- Asparagus
- Productive for 10 to 15 years
- Artichokes
- Rhubarb
- Take extra care in placement
http://www.lifesci.ucsb.edu/~wallenstein/photos/pages/artichoke%20flower.htm
http://www.lifesci.ucsb.edu/~wallenstein/photos/pages/artichoke%20flower.htm