|Placeable||✔️ (2 wide × 4 high)|
|Use time||15 (Very fast)|
|Buff tooltip||Movement speed increased and monster spawns reduced|
|Duration||Infinite while in vicinity|
Sunflowers are large plants which can be found growing naturally on grass, and can be freed with a pickaxe or drill. They cannot be grown from seeds like most other plants, but are instead placed fully-grown, either naturally upon world generation or by the player. They can also be purchased from the Dryad for 50 each, while a Blood Moon is not occurring.
Sunflowers provide the following functions:
- The two tiles directly underneath them cannot become Corrupted, Crimsoned, or Hallowed, even in Hardmode. In some cases, this can prevent Corrupted and Crimson grass from spreading sideways.
- Each Sunflower decreases an area's total Corruption rating by 5 tiles. This rating is used to determine whether NPCs will reject housing. If placed in large quantities, they can allow NPCs to live near tainted blocks. This effect covers a radius of about 25 tiles.
- They provide the Happy! buff to players within a rectangular area of 170×125 () / 100×84 () tiles centered on the Sunflower, which grants a +10% movement speed bonus and 17% reduction in enemy spawn rate.
- Sunflowers help to prevent Graveyard biomes from forming by canceling out one Tombstone each.
- The Sunflower's Happy! buff stacks with the effect of the Peace Candle, as well as the movement speed buff of Asphalt Blocks.
- The buff reduces critter spawns, so if the player would like to collect bait, it is wise to remove any nearby Sunflowers.
- Sunflowers glow in the dark, though they will not light up the surrounding area, only its flower.
- When placed in a Graveyard biome, Sunflowers do not grant nearby players the Happy! buff.
- Sunflowers have a very low chance of spawning more Sunflowers in a small area.Verify
- In the release trailer for 1.3, a variant of sunflower was shown with a golden interior as opposed to the regular sunflower (some are seen in the beginning of the trailer). It never ended up in the final update and its effects are unknown.
- Sunflowers' ability to resist Corruption and Crimson may be a reference to their real-world reputation for cleaning up nuclear radiation.
- A sunflower is used as the loading icon on the Desktop, Console, and Mobile versions.
- The sunflower in the loading icon is very similar to the loading icon of Plants vs. Zombies 2, a marigold that plays a very similar animation.
- Desktop 18.104.22.168:
- Sunflowers can now prevent the Graveyard mini-biome from being created.
- Sunflowers now stop the spread of the Hallow.
- Area of effect increased.
- Sprites updated.
- Desktop 1.3.1: Sprite updated.
- Desktop 1.2.1: Sunflowers now reduce Crimson’s effects.
- Desktop-Release: Introduced.
- Console-Release: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile 22.214.171.124: Sunflowers now glow at night and grant the player Happy! buff.
- Mobile-Release: Introduced.
- 3DS-Release: Introduced.
- Information taken from the Desktop 126.96.36.199 source code, method
. There may be inaccuracies, as the current Desktop version is 188.8.131.52.
- U.Va. Undergraduate Researcher Studies Sunflowers’ Power to Clean Up Soil (accessed 05/25/2020)