Gardening can be rewarding and educational. It does require patience, as plants in real life don’t grow immediately like in computer games. Also needs dedication, for watering regularly and removing weeds. Harvesting crops is always fun. And the flowers are so nice to look at. Alhamdulillah.
Some concepts for deep diving : soil testing for pH (science), Germination rate (maths), when to sow which seeds (planning) etc.
Plants can be grown in pots if space is lacking.