I am trying to figure out something and I need help from someone more experienced in Houdini than me, and probably most of members here are

I need to scatter trees ( huge geometry as usual ) with delayed shader. I manage to do that, works like charm, really low RAM usage and I like it.
But problem is, tree has trunk and leafs ( am I smart or what ), I need to have different material for trunk and for leafs.

What would be best approach for doing this? And to be able to scatter that delayed load geometry or geometries nicely later.

To have two delayed shaders one for leaf and one for trunk? I couldn't find much info about archived material, not sure what that should do and how to create it in first place.

Any help is appreciated!