Hey all,
i was wondering some of vurts tree mods dont have esps and the readme says to drop them into data file but dont you need an esp to work?
thanks in advance,
qwert

Not if you're just replacing the original/existing trees. If you want to edit the landscape or add new trees, however, you would need an .esp file.

Simple "Replacers" don't need esps.
The game will just see the newer file and use that instead of the default one in the BSA.

Read the ReadMe and follow the instructions.