Unless something changed recently this should be incredibly rare since a single plant is only up to 4 blocks tall and unlike cactus the block it is on must be next to water* so it can't generate on itself unless in the situation where a waterfall happens to be next to it; as far as I know no such occurrences have ever been found, or even attempted to be found (like the search for the tallest cactus), at least on Java Edition as I found a case where somebody found some in Bedrock, all by itself.
*Source code from 1.6.4 (obviously, extremely outdated, the newest I've seen is for 1.12 and it has the same check for water; this is some of the oldest unchanged code in the game since Beta 1.1, and likely earlier, had the same code):
public class WorldGenReed extends WorldGenerator
{
public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
{
for (int var6 = 0; var6 < 20; ++var6)
{
int var7 = par3 + par2Random.nextInt(4) - par2Random.nextInt(4);
int var8 = par4;
int var9 = par5 + par2Random.nextInt(4) - par2Random.nextInt(4);
if (par1World.isAirBlock(var7, par4, var9) && (par1World.getBlockMaterial(var7 - 1, par4 - 1, var9) == Material.water || par1World.getBlockMaterial(var7 + 1, par4 - 1, var9) == Material.water || par1World.getBlockMaterial(var7, par4 - 1, var9 - 1) == Material.water || par1World.getBlockMaterial(var7, par4 - 1, var9 + 1) == Material.water))
{
int var10 = 2 + par2Random.nextInt(par2Random.nextInt(3) + 1);
for (int var11 = 0; var11 < var10; ++var11)
{
if (Block.reed.canBlockStay(par1World, var7, var8 + var11, var9))
{
par1World.setBlock(var7, var8 + var11, var9, Block.reed.blockID, 0, 2);
}
}
}
}
return true;
}
}
I went and checked in 1.20 presuming it may or may not be the same since the terrain generation hasn't radically changed, but I found no sugar cane there in that version, so I checked 1.21.4 Pre-Release 1 and there is sugar cane there in that version, but it's only four blocks tall.
I only then noticed you added a reply with a screenshot after this, which shows the same thing. That is four block tall, not five. I would have done the alternating wool stack method to prove it, but it's pretty easy to tell how tall that is with one of the blocks highlighted.
Guys i found a 5 tall sugarcane in my world
version: 1.21.4 pre-1
seed: -6276036239036743190
teleport command: /execute in minecraft:overworld run tp @s 282.45 63.00 -595.69 -410.06 5.55
look around a little after running the tp command, it is within 5 blocks radius
can someone tell me the odds of this happening?
Unless something changed recently this should be incredibly rare since a single plant is only up to 4 blocks tall and unlike cactus the block it is on must be next to water* so it can't generate on itself unless in the situation where a waterfall happens to be next to it; as far as I know no such occurrences have ever been found, or even attempted to be found (like the search for the tallest cactus), at least on Java Edition as I found a case where somebody found some in Bedrock, all by itself.
*Source code from 1.6.4 (obviously, extremely outdated, the newest I've seen is for 1.12 and it has the same check for water; this is some of the oldest unchanged code in the game since Beta 1.1, and likely earlier, had the same code):
public class WorldGenReed extends WorldGenerator { public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5) { for (int var6 = 0; var6 < 20; ++var6) { int var7 = par3 + par2Random.nextInt(4) - par2Random.nextInt(4); int var8 = par4; int var9 = par5 + par2Random.nextInt(4) - par2Random.nextInt(4); if (par1World.isAirBlock(var7, par4, var9) && (par1World.getBlockMaterial(var7 - 1, par4 - 1, var9) == Material.water || par1World.getBlockMaterial(var7 + 1, par4 - 1, var9) == Material.water || par1World.getBlockMaterial(var7, par4 - 1, var9 - 1) == Material.water || par1World.getBlockMaterial(var7, par4 - 1, var9 + 1) == Material.water)) { int var10 = 2 + par2Random.nextInt(par2Random.nextInt(3) + 1); for (int var11 = 0; var11 < var10; ++var11) { if (Block.reed.canBlockStay(par1World, var7, var8 + var11, var9)) { par1World.setBlock(var7, var8 + var11, var9, Block.reed.blockID, 0, 2); } } } } return true; } }TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?
nope its not true
on another note, it was really laggy for me 1.15+ without sodium is so terrible im glad I played on LCE
I went and checked in 1.20 presuming it may or may not be the same since the terrain generation hasn't radically changed, but I found no sugar cane there in that version, so I checked 1.21.4 Pre-Release 1 and there is sugar cane there in that version, but it's only four blocks tall.
I only then noticed you added a reply with a screenshot after this, which shows the same thing. That is four block tall, not five. I would have done the alternating wool stack method to prove it, but it's pretty easy to tell how tall that is with one of the blocks highlighted.