They can be collected by hitting the block the flower sits on or directly mining the sunflower with a Pickaxe. Sunflowers also have the ability to spawn more sunflowers in a small area, but the chance is very low. This will only occur on grassy dirt blocks.
Sunflowers can be placed like any block, you just need the right condition (as mentioned above), have it in your inventory, and left click the ground.
As of 126.96.36.199, sunflowers now give off light during the night time (could be a possible reference to sunflowers from Plants vs. Zombies) and give the player the Happy Buff which gives the player increased movement speed and reduces the amount of monster spawns.
- It seems like in 1.2 Sunflowers do block The Corruption, but because they block only 2 tiles it will be able to cross a single Sunflower.
- Butterflies swarm around sunflowers quite commonly.
The Sunflower's in-game ability (stopping the Corruption) may be linked to their real-life ability, rhizofiltration, which is when the sunflower removes toxins from soil; which can reduce radioactivity in an area they're planted in.
- Gives off light and gives player Happy Buff.
- Now will reduce the Crimson's effects.
- Added to the game.