6. Arugula
Even though almost anything can be grown in a greenhouse, it seems that arugula is a perfect plant for greenhouse conditions. Also, one variety of arugula – the rocket was modified to be grown particularly in greenhouses. Since arugula is a popular salad green, finding your place on a local market won’t be a problem. Also, growing arugula does not require much hard work, and it brings around $10/lb.
Pixabay/Public Domain
