"Rich growth of trees" is a descriptive phrase that conveys a sense of abundance, health, and vitality within a forest or woodland area. Here's what it implies:

* Abundant Trees: The area is densely populated with trees, perhaps with a variety of species.

* Healthy Trees: The trees are thriving, with lush foliage, strong branches, and no signs of disease or damage. This suggests good soil quality, adequate sunlight, and appropriate rainfall.

* Vigorous Growth: The trees are actively growing, with new leaves, branches, and perhaps even new seedlings.

* Aesthetically Pleasing: The phrase evokes a sense of beauty, with a dense canopy of green leaves, providing shade and creating a peaceful environment.

Examples of how "rich growth of trees" might be used:

* "The park was a haven of peace, with a rich growth of trees casting dappled shadows on the ground."

* "The ancient forest boasted a rich growth of oak, maple, and birch trees, their branches intertwined."

Essentially, "rich growth of trees" describes a forest or woodland that is thriving and flourishing, a sign of a healthy ecosystem.