Cull Distance Volume -> Foliage disappears when i come near?

Hello UE4 Community!
I dont know, maybe its a dumb question but its my first time i work with the “Cull Distance Volume”.
I set all up, that small - big meshes disappear after a distance of X . But when i go now to the ground of my map, you see buildings, signs etc, but the Foliage like the gras, stones and trees are now invisible …

The Pictures: On the first picture (right side) there are bushes (without cull settings right now) but also a ton of grass which not visible? At the second picture you can also see Trees which are not visible in the first picture

Can someone pls help me?

Thank you guys very much!!