Flower Pot – Official Minecraft Wiki
Usage . A flower pot can be used to hold mushrooms and various plants. Plants that can be placed in a pot include any one block high flowers, saplings, ferns, dead bushes and cacti.. Flower pots can be placed against any surface in Java Edition. [Java Edition only]In Bedrock Edition, they must be placed on top of a full-block top surface, or the top of a fence, stone wall or hopper.