Everyone on here has a ton of great ideas <3 ! I haven't played The sims 4 for very long, but I noticed that flowers doesn't give much for players to do so I thought up that maybe there can be a stuff pack called 'Get Crafting' or something :) .
* sims can use up the flowers crowding your sims inventory by creating flower arrangements and placing them in vases to decorate your house
* flower pressing can be done to decorate picture frames and other things
* fresh or candied flowers can be used to decorate cakes and be used in new dishes and deserts!(Surprisingly, a lot of flowers are edible and can be eaten.) Eating these dishes can give a positive buff called 'flower power' or something.
* daisies and other flowers can be used to make flower crowns and other accessories that your sims can wear! I think all ages (except for babies of course!) should be able to wear/ make them.
*flowers can be used to make soaps and perfumes; using the soap/ perfume can change their emotion or give a buff ex; lilac perfume/soap can give a 'calm' or 'tranquil' emotion for a couple of hours. After a few uses it will run out and your sim will have to make more.
* Finding gems and minerals can be sent to be cut into small spheres and shapes to be made into necklaces and other accessories!
* Kids can make friendship bracelets out of beads and offer them to their friends, if they accept they automatically become best friends!
* Sims can buy a pottery wheel to create vases, plates, and bowls!
* a glass blowing station would be another creative way to make vases and beautiful plant watering bulbs!
*cotton can be grown and made into yarn or can be bought along with other fabrics which can allow your sims to knit or make quilts, which can be used as decoration or put on beds or even have sims curl up in them if it's in their inventory.