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Incubator Q&A

Welcome to the staging ground for new communities! Each proposal has a description in the "Descriptions" category and a body of questions and answers in "Incubator Q&A". You can ask questions (and get answers, we hope!) right away, and start new proposals.

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Incubator Q&A Prevent kelp from growing past a certain height

From the Minecraft wiki: 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 incr...

posted 2mo ago by Andreas witnessed the end of the world today‭

Answer
#1: Initial revision by user avatar Andreas witnessed the end of the world today‭ · 2024-09-12T15:37:20Z (2 months ago)
From the [Minecraft wiki](https://minecraft.wiki/w/Kelp):

> 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.

Therefore, you can limit kelp height by repeatedly placing down kelp until it has the `age` value necessary (height can be minimum 2). Point at the block and use the debug menu (`F3`) to see the value (right side of the screen).

If you're in creative, or have commands enabled in survival, you can use commands to place it (height can be minimum 1):

```
/setblock ~ ~ ~ kelp[age=25]
```

Bonemeal will always allow you to grow kelp past this limit, despite having placed the kelp down with a specific age.