Flower Power UHC
This addon makes flowers drop a bunch of unique items, it was intended for UHCs but it also works fine in survival worlds. Breaking any type of flower will yield anything from iron ingots to potions
If you break any type of flower a bunch of items will be spawned. You can get basic items like iron, diamonds, gold, food, and you can even get enchanted iron gear.
This addon used the player.json file so it won't work with most other addons, but it's pretty easy to merge with another addon if you know what you're doing.