I may not have a green thumb, but who knows because my dad has a garden… but for me I think the biggest problem is sun. My room is pretty much under a huge maple tree and get barely any sun through my windows. Our property is pretty shady (lol) in general so we can’t have much of a garden. Though in my town there is a section blocked off for community gardens and that’s where my dad has his.
If I ever live in a place that has enough sun, I’m gonna grow a stringing garden.
Here is a website dedicated to stringing gardens: http://www.stringgardens.com/index.php?/summer-2009/