[Pfhreak]

Keep in mind that floating soil is problematic. There may be soil in the pouches there.

Step one, discover whether pouches can support plant life in space, with ideal conditions set up beforehand on earth.

Step two, discover whether you can manufacture said conditions in space using in situ materials.

Lettuce is a great way to explore step one. Consider that we're not confident that root systems will behave correctly when water doesn't flow through the strata like it normally does with gravity. There are still fundamental research elements to be done.