Mushroom Grass Seeds

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Mushroom Grass Seeds
  • Mushroom Grass Seeds item spriteold Mushroom Grass Seeds item sprite
Use time15 (Very fast)
Max stack9999 (Desktop, Console and Mobile versions) / 99 (Old-gen console and 3DS versions)
RarityRarity level: 0
Buy1 SC50 CC
Sell30 CC
Research25 required
Obtained from Obtained from
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
Giant Glowing Mushroom_Giant Glowing MushroomGiant Glowing Mushroom
(Shaking(Desktop, Console and Mobile versions))

Mushroom Grass Seeds are a type of seed that has a (Desktop, Console and Mobile versions) 1/40 (2.5%) / (Old-gen console and 3DS versions) 1/50 (2%) chance to drop from harvesting Glowing Mushrooms. The seeds can also be purchased from the Dryad for 1 SC50 CC each if the Dryad is spoken to in a Glowing Mushroom biome. Shaking(Desktop, Console and Mobile versions) a Giant Glowing Mushroom occasionally yields Mushroom Grass Seeds as well.

Mushroom Grass Seeds must be planted on Mud Blocks and can be grown both above and under ground. Once planted, Mushroom grass will begin to spread to adjacent Mud Blocks and grow Glowing Mushrooms, as well as Giant Glowing Mushrooms when enough space is available.

Mushroom Grass spreads much slower than ordinary or Corrupt grass, at a speed comparable to Jungle grass – 3–5 tiles per day for each continuous section of Mud Blocks. Mushroom grass, as well as the mushrooms that grow on it, emit moderate light.



ResultIngredientsCrafting station
Mushroom Grass SeedsMushroom Grass SeedsShimmerShimmer Transmutation(Desktop, Console and Mobile versions)

Used in

ResultIngredientsCrafting station
Purple ThreadPurple Thread(Old-gen console and 3DS versions)Placed BottlePlaced Bottle
Alchemy TableAlchemy Table(Desktop, Console and Mobile versions)
White ThreadWhite Thread
Jungle Grass SeedsJungle Grass SeedsShimmerShimmer Transmutation(Desktop, Console and Mobile versions)


  • Mushroom grass can also be created by using the Clentaminator with Dark Blue Solution on Jungle grass. However, the seeds are available long before the Clentaminator, and Dark Blue Solution is not available until Truffle has appeared.


  • If the Mushroom grass can spread to enough blocks, it will create a Glowing Mushroom biome. Creating such a biome above surface level (and a house within it) is necessary to allow the Truffle NPC to spawn.


  • Desktop
    • Drop rate increased from 1/50 to 1/40.
    • Stack limit increased from 99 to 999.