Here some of my self-made plants, all have 3 LOD's, collision, wind for Unreal4, modular materials and are good performing:

details in one example:

sets:


each plant is available or modifyable for all seasons:


custom trees, like the "grabbing tree":

trees as letters:

prehistoric:

grasses:

and much more!
Contact me at:
(Greenwich time +1 hour) via Skype ID: volluskrassos then my nickname there is Joe Cool