Scuba Divers have begun to plant gardens underwater.

I suppose if certain aquatic plants will do well underwater, than why not vegetables. Using huge bubbles in 26 feet of water, they have started growing lettuce. The whole project has been going on for 3 years. Seeds and soil need to to be brought down in sealed containers. Scuba divers are able to work in the air filled bubbles without wearing a mask. You can read more in the full article.