I've always been into plants, but until a couple years back I've only had small apartments so I only grew a few plants in pots.
Now that I have a yard, and now that I'm stuck at home, I've really taken to gardening and working on my plants. I know so little.
I think the hobby is incredible. There is so much to it you could never know it all and never not be challenged. Just to list a few variables you need to consider would be soil, soil composition, climate, heat, weather, watering, fertilizing, insects and other things that want your plants, making plants flower or fruit, visual appeal as far as the plant and also in the landscape, pots, pot plants, and tons more. It's a super hobby.
I'm currently trying to propagate jasmine plants from cuttings which I have never done. I want to learn how to get more plants from the plants I have. I also cook lots of Asian food so growing herbs used in cooking is a big focus of mine I'm learning about.
Cheers.