Kelp

This article is about the plant. For the dried variant, see Dried Kelp.

For other uses, see Kelp (disambiguation).

Kelp

Renewable	Yes
Stackable	Yes (64)
Tool	Any tool
Blast resistance	0
Hardness	0
Luminant	No
Transparent	Yes
Flammable	No
Catches fire from lava	No

Kelp is an underwater plant that generates in most oceans.

Occurrence

Natural generation

Kelp naturally generates in any ocean biomes (except in frozen, deep frozen and warm), near and around seagrass. Each chunk has ¹⁄₁₈ chance to generate a random patch of kelp.

Obtaining

Breaking

Kelp can be mined instantly with any tool or with the player's fist. Breaking one part of a kelp stalk destroys all kelp blocks above it. Each block drops a kelp item.

Trading

Kelp can be bought from wandering traders for 3 emeralds.

Usage

Kelp can be placed underwater by hand, or anywhere by the use of commands such as /setblock. Placing it by hand gives it a random age value between 0 and 24. Kelp can be placed only in water source blocks or downward-flowing water, not horizontally flowing water.

When placed in downward-flowing water, the flowing water transforms into a water source block, which can be useful for faster bubble column elevator creation.

Any building block can be placed on top of a kelp plant, which is useful for building structures over a deep ocean without needing to build from the ocean floor.

Blocks of dried kelp can be used as fuel for furnaces.

Dried kelp can be used as a food source for the player.

Cooking ingredient

Name	Ingredients	Smelting recipe
Dried Kelp	Kelp + Any fuel	0.1

Composting

Placing kelp into a composter has a 30% chance of raising the compost level by 1.

Growth mechanics

Kelp can be planted on a broad variety of blocks. It grows underwater if it has either a source block of water or flowing water above it. If flowing water is above it, the kelp plant transforms the flowing water into a water source block when the plant grows into it. Neither players nor dispensers can remove the water source block a kelp grows in without breaking the kelp first.

Kelp can grow in complete darkness and does not require any light level to grow. Kelp also grows without having sky access. Bone meal can be used to grow kelp by 1 block on each use.

Kelp, when planted, is generated with a randomly chosen age value, which can be checked when pressing F3‌^{[Java Edition only]}. The age value of a newly planted kelp plant varies randomly from 0 to 24. Each time the kelp grows in height by one block, the newly generated top of the kelp plant increases its age by 1. When the top block of the kelp plant reaches an age of 25, it stops growing. This means that kelp can naturally grow to a height between 2 (if the first kelp plant had an age of 24) and 26 blocks (if the first kelp plant had an age of 0).

When a kelp plant block is broken, the age of the kelp plant block underneath is randomized to a value from 0 to 24 and the kelp continues growing until it reaches age 25. It is possible to use this mechanic to cultivate a kelp plant to increase its growth height beyond its natural maximum height of 26 blocks. This can be done by breaking the top-most block of the kelp plant each time it reaches age 25. A kelp plant cultivated by a player in this way repeatedly grows until it reaches the water surface.

Each time it receives a random tick, kelp has a 14% chance of growing.

If shears are used on the topmost block of kelp, that block will automatically set its age value to 25 and stop growing.‌^{[Java Edition only]}

Farming

Main article: Tutorials/Kelp farming

Kelp farming is similar to farming sugar cane, although kelp must be placed underwater. Automation of harvest is easier because items float up in water.

Sounds

Java Edition:

Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	Block broken	Blocks	Once the block has broken	block.wet_grass.break	subtitles.block.generic.break	1.0	0.8	16
	None	Blocks	Falling on the block with fall damage	block.wet_grass.fall	None	0.5	0.75	16
	Block breaking	Blocks	While the block is in the process of being broken	block.wet_grass.hit	subtitles.block.generic.hit	0.25	0.5	16
	Block placed	Blocks	When the block is placed	block.wet_grass.place	subtitles.block.generic.place	1.0	0.8	16
	Footsteps	Blocks	Walking on the block	block.wet_grass.step	subtitles.block.generic.footsteps	0.15	1.0	16

Bedrock Edition:^{[more information needed]}

Data values

ID

Java Edition:

Name	Resource location	Form	Translation key
Kelp	kelp	Block & Item	block.minecraft.kelp
Kelp Plant	kelp_plant	Block	block.minecraft.kelp_plant

Bedrock Edition:

Kelp	Resource location	Numeric ID	Form	Translation key
Item	kelp	335	Item	item.kelp.name
Block	kelp	393	Block	tile.kelp.name

Block states

See also: Block states

Java Edition:
Top

Name	Default value	Allowed values	Description
age	0	0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25	A freshly planted kelp starts with a random age between 0 and 24. Below age 25, a kelp may try go grow more kelp above it with the same age value incremented by one. Kelp stops growing at age 25.

Bedrock Edition:

Name	Default value	Allowed values	Description
age	0	0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15	The age of the kelp. The kelp renders as a non-top piece if there's another kelp above it.

History

Java Edition Classic
May 21, 2009					Notch shows interest in adding a "seaweed" block.
Java Edition
November 18, 2017					Kelp plants were shown in a clip of MineCon Earth.
1.13		18w07a			Added kelp.
		18w07b			Kelp now behaves more like water, meaning mobs can no longer spawn within the plant under water nor can they replenish their breath by swimming through it.
		18w10a			The texture for kelp has been overhauled.
		18w14a			Top of the kelp textures have been shifted slightly downward.
					The generation rules for kelp have been changed, it now mainly generates in cold ocean biomes and can no longer generate in warm oceans.
		18w20a			The "kelp_top" has been changed ID to "kelp" and "kelp" has been changed to "kelp_plant", for both the block and item forms.
		pre2			Kelp is now destroyed by sponges.
		pre6			Added 5 new sound events that apply to kelp: block.wet_grass.break, block.wet_grass.fall, block.wet_grass.hit, block.wet_grass.place, and block.wet_grass.step.
1.14		19w03a			Placing kelp into the new composter has a 10% chance of raising the compost level by 1.
		19w05a			Kelp now has a 30% chance of increasing the compost level in a composter by 1.
					Added wandering traders, which sell kelp.
1.16		20w11a			Kelp can now be grown with bone meal.
1.17		20w46a			Kelp no longer generates on magma blocks.
1.18		21w37a			Kelp will now stop growing if shears are used on the tip.
Bedrock Edition
1.4.0		beta 1.2.14.2			Added kelp.
		beta 1.2.20.1			The kelp item texture has been updated to the Java Edition's.
1.5.0		beta 1.5.0.4			The texture of the kelp plant has been updated.
1.10.0		beta 1.10.0.3			Kelp can now be bought from wandering traders for 3 emeralds.
1.11.0		beta 1.11.0.1			Kelp can now be used to fill composters.
Legacy Console Edition
TU69		1.76	Patch 38		Added kelp.

Issues

Issues relating to "Kelp" are maintained on the bug tracker. Report issues there.

Trivia

• In real life, kelp is not considered a plant. It is classified by scientists as a brown algae.

Gallery

• 

  Kelp shown in a clip from MINECON Earth 2017.

• 

  Naturally generated kelp in an ocean biome.

• 

  Naturally generated kelp near the shore.

• 

  An ocean with kelp visible in the far distance.

• 

  Kelp placed outside of water using the /setblock command before 18w07b.

• 

  What kelp looks like without water (water removed using a resource pack).

• 

  Kelp within a coral reef.

• 

  Kelp that generated in mid-air due to an ocean monument's water cutting through it.

• 

  Multiple kelps.

• 

  Without obstacle, kelps can grow all the way to building limit.

References

Items

View at: Template:Items/content [edit]