I don't know anything about soil, but the soil on her land seems pretty unpromising. I'm not sure whether the photo really conveys how gray it is.
She tries to work with the soil by planting in beds that she covers with leaves and straw. It holds the soil down and captures moisture.
She is working on a couple of different crops. One is tomatoes.
Here's a young eggplant.
Cabbage seems to grow pretty well in the Matenwa area.
And here's a young sweet pepper.
And here's a picture of Vana herself.
