Tick anything you already have, in any order. Quests unlock once this is done.
Watch it for a day. Six hours of sun is a different garden from two, and picking plants for the wrong one is the most common reason things die.
Find one near you2 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Keep a houseplant alive for a month