Bomb Flower are small blue plants that grow next to lava pools. Upon being punched, the flower will drop a small blue bomb, which will consequently detonate. Harvest them (For the first bomb to make a bag at least) by pouring water from a bucket onto them. More often than not, it will destroy the plant or set off the bomb, but there is the off chance an unarmed bomb will drop. Mining the block under the plant will set off the bomb.
They only grow on smooth stone or netherrack next to lava. They can be harvested with shears, then use a bomb bag to harvest bombs by left clicking the bomb flower then the bomb that drops.
The Bomb Flower was inspired by the Legend of Zelda.