1. Ginseng
As becoming more and more popular, ginseng is also at the top 8 most profitable specialty plants to grow in a greenhouse on our list as well. Ginseng is a plant that has been used in ancient Asian medicine for centuries, and even though not enough serious research was done on ginseng’s effect on human health, this plant has a very high price. By growing ginseng, you can make the profit from literally the whole plant, rootlets, seeds or mature roots. All of those bring high profit (rootlets from $2, seeds from $150 per pound, and mature roots form $300 to $600 per pound).
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