You don't have to search and use PBR textures - you need just ONE leaf texture.

How it works ?

Easy. Load your leaf texture, connect it with diffuse, glossy and bump slot, alpha texture (if need) to alpha slot and ... finish ! 

It works really good. 

Why you should not use PBR textures ?

Most time when you are creating scenes, your plants (interior and exterior) are far from camera, and you never see leaf details. You see just green objects, right ? So, why load 3,4 or 5 textures to your scene ? Waste of time.

But ! If you want create close-up render of your plant, you want see details. But still you don't need PBR textures. One texture makes great work. Try ! 

With this shader you can:

1 - easy change hue, saturation and brightnes of your leaf (back side and translucency created automatically)

2 - easy change translucency strenght,

3 - easy change glossy strenght,

4 - easy change bump strenght.

5 - easy add alpha map.

ALL IN ONE NODE !

Hope you will enjoy it ! Make your arch-viz better.

Please check my other models.

UPDATE:

16.05.2020 - better texture color correction options