Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Realistic Tree Pack 3 Free.
Realistic Tree Pack 3
This package contains LOD transitions and fully support Unity Wind Effects
This map contains 1024, 512, 256 Diffuse, Normal texture map.
it contains 3 LOD’s for each Tree
for more assets please check here
To get the Quality of the plant animation which you find in the video is by assigning the shader in the following link.
. Download Shader
. The default Tree shader in the unity will work fine. for the best vertex animation performan you can use the shader which i gave above.