in Thoreau’s Journal:

For a week past we have had washing days. The grass waving, and trees having leaved out, their boughs wave and feel the effect of the breeze. Thus new life and motion is imparted to the trees. The season of waving boughs; and the lighter under sides of the new leaves are exposed. This is the first half of June. Already the grass is not so fresh and liquid-velvety a green, having much of it blossom[ed] and some even gone to seed, and it is mixed with reddish ferns and other plants, but the general leafiness, shadiness, and waving of grass and boughs in the breeze characterize the season. The wind is not quite agreeable, because it prevents your hearing the birds sing. Meanwhile the crickets are strengthening their quire. The weather is very clear, and the sky bright. The river shines like silver. Methinks this is a traveller’s month. The locust in bloom. The waving, undulating rye. The deciduous trees have filled up the intervals between the evergreens, and the woods are bosky now.