Adam is the ultimate gardener. Not in the sense that he still keeps a garden or plants around, but in that he has ALL the knowledge on how to make sure plants grow and thrive from his time being a legit farmer after Eden.
Adam doesn't really give a sh!t about the hotel or anything except for maybe himself and his guitar, but when he spots Charlie trying to water a fern that is clearly already over-watered, his eye twitches. A few days later when he sees her trying to prune a rosebush by cutting an inward facing bud, he has to physically stop himself from marching over and ripping the shears out of her hands.
Later, when Charlie starts crying about how her spider plant is dying and is about to re-pot it somewhere with MORE light, Adam finally snaps and grabs it from her, like, "What the f*ck do you think you're doing!? You don't put spider plants in full sun, and- GAH, just give it to me, and I'll show you!"
Cue Adam irritatedly rolling up his sleeves and going full "plant-dad" as he fixes the sorry f*cking state of this plant this girl has been abusing.
