Common trees such as osmanthus fragrans (near the door) and Cinnamomum camphora are used as the upper wood.

The middle wood (shrub) is crape myrtle, wintersweet with evergreen ball games such as Pittosporum or Photinia rubra.

The lower wood uses sunflower, rhododendron and lingcao to grow Chinese rose.

If it is a Chinese-style courtyard, it needs to build a small slope, and the upper trees are built into an equilateral acute triangle to broaden the horizon according to the actual terrain and surrounding scenery.

What I said above is Central China and East China. This scheme is economical and practical. As long as it is built well, there will be good results.

The tree species in Lingnan area are more selective.

This plan is not suitable for the northern region.

My humble opinion is for reference only.