A stacked, vertical framework usually made of wood, wire, or tires, used to grow potatoes in a highly confined space. As the potato plants grow upward, more soil or mulch is added to the pen, encouraging the stems to produce tubers along a vertical column rather than spreading horizontally.
Heard on the job
We built a potato pen out of scrap lumber to maximize the yield in the community garden.
Also heard as
- potato tower
- potato box