The bug
Birch trees won't grow up when there is tall grass around the sapling.
Linked issues
is duplicated by
Comments
Please put the description into the "Description" box rather than "Environment".

I can confirm this bug to be in Minecraft 19w42a (on the land)
There's a separate issue in 19w42a, which you're probably experiencing: MC-163403.

This issue was fixed in 1.16 pre-release 3
Please attach the crash report (
[minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt
), otherwise we can not diagnose this issue.For technical support please use the Mojang Support Center.
-- I am a bot. This action was performed automagically!