I combine Houdini with Zbrush in most of my work.
To showcase why this makes sense - despite most studios looking for either a Zbrush or a Houdini artist... - I created this personal project combining 4 environment modeling (Houdini VEX) with a sculpt (Zbrush).
The bush is procedural, created with a space colonisation algorithm combined with volume avoidance.
The ground is procedural, including the animal footsteps.
The rock is procedural, including uv creation.
The grass is procedural (+ super-fast wind animation, not using any particle system!).
All shaders are procedural, custom made.
The horse statue is sculpted in Zbrush (base mesh UVed in Blender)