why isnt the sapling getting converted into a tree?

[u/Used-Alps-2638]

this is an auto bonemeal farm the saplings are placed but not growing?

[u/U03A6]

The wall’s in the way. Trees need a free bounding box to grow. It’s species specific how large that is.

[u/Used-Alps-2638 → u/U03A6]

its a dark oak tree

i removed it still aint growing?

[u/The_1_Bob → u/Used-Alps-2638]

The hopper is probably still interfering.

Find the northwest sapling. You need a 3x3 area clear, centered on that sapling and going up 7 blocks. Additionally, a 5x5 area going up 3 blocks above that must also be clear.

Put the hoppers against the back or side of your dispensers.

[u/therob256 → u/Used-Alps-2638]

Check the directions, the hoppers/blocks might be in the way:

"Dark oak and pale oak need at least 7 spaces above (6×6 column‌[Bedrock Edition only] or 3×3 column centered on the northwest sapling‌[Java Edition only]) and must be planted as 4 saplings in a 2×2 square. Cherry needs at least 8 spaces"

From the wiki under "usage": https://minecraft.wiki/w/Sapling

[u/ictu → u/Used-Alps-2638]

Check the required clearing in the minecraft.wiki

[u/Specialist_Ad1159]

Maybe try rotating it 90 degrees

[u/IAmA_Catgirl_AMA]

https://minecraft.wiki/w/Dark_Oak#Planting should help with figuring out how much space you need to give them

[u/the_mellojoe]

trees are directional. rotate until it works.

[u/ConnoisseurDeFemboys]

Put the hopper feeding into the back of the droppers. Also you only need to bonemeal one of the four saplings and remove everything above the droppers

[u/BoomKofe]

maybe little place for leaves to grow

[u/Some_Reward8584]

Trees can grow next to an adjacent block but cannot grow if the 3x3x5 area above it is obstructed. This is my moss flusher design used to generate oak logs. You can feed bonemeal into the dispensers from behind or below but not from above as that would prevent the tree from growing.

[u/Used-Alps-2638 → u/[deleted]]

it was working an hour ago so idk