The foliage is very dense.

Erudition can produce foliage without bearing fruit.

The trees have exuberant foliage.

Welling up between the stones is a small spring, its water sparkling in the sunlight that has found its way through the dense foliage of the forest.

The fawn blended seamlessly into the foliage.

Fig trees have thick foliage.

In the country, the colors of the sky and of the foliage are entirely different from those seen in the city.

Have you heard of the great Forest of Burzee? Nurse used to sing of it when I was a child. She sang of the big tree-trunks, standing close together, with their roots intertwining below the earth and their branches intertwining above it; of their rough coating of bark and queer, gnarled limbs; of the bushy foliage that roofed the entire forest, save where the sunbeams found a path through which to touch the ground in little spots and to cast weird and curious shadows over the mosses, the lichens and the drifts of dried leaves.

Within the palace, open to the day, / there stood a massive altar. Overhead, / with drooping boughs, a venerable bay / its shadowy foliage o'er the home-gods spread.

I find it very calming to be surrounded by the thick, green foliage of trees, the vibrant colors of the springtime flowers, and the sounds of birds, frogs and rushing water from the swollen creeks.