[She's not sure for the others, but gardening is calming to her. There's so much darkness and death and sickness going around that she so easily loses herself in digging and poking the dirt, not thinking about much.]

Some veggies? Maybe succulents? They have thick leaves and hold in water so even when you forget to water them they'll be fine.

Of course, leaving them by themselves for too long would be bad, like with any other plant.

I can help you grow some melons or tomatoes. They need a bit more attention but nothing too bad. Just weeding and watering.