Chlorella is a type of algea, so it would definitely need to be grown in water. It’s also not very cold hardy – it looks like it can maybe just barely handle a light frost, maybe? – so in order to keep it alive in a temperate climate, it would have to be grown indoors through the winter. It looks like it reproduces asexually, and doesn’t make seeds.
Given the very appealing health benefits of chlorella, I think it would be neat to grow it to eat it. Can this be done in a small scale, maybe in a Rubbermaid bin full of water in a back yard?
What do you think?