4.Bamboo. Landscapers and homeowners are paying as much as $150 each for potted bamboo plants.
5. Ground Covers. Bringing high profits of up to $20 per square foot.
6. Mushrooms. Exotic mushrooms, such as oyster and shiitake, make sense, as they can be grown indoors without soil. Oyster mushrooms, for example, produce around 25 pounds per square foot of growing space in a year’s time. At the current wholesale price of $7 a pound, that’s $17,000 worth of mushrooms from a 10’x10′ space! Exotic mushrooms do not travel well, so small local growers will always have an edge over distant producers. At our local Saturday market, the oyster mushrooms are also the first items to sell out.
Learning the sciences with new angle. 