in Thoreau’s Journal:

What they call April weather—threatening rain notwithstanding the late long continued rains—  Pm.  Rambled amid the shrub oak hills beyond Haden’s. Lay on the dead grass in a cup-like hollow sprinkled with half dead low shrub oaks— As I lie flat looking close in among the roots of the grass I perceive that its endless ribbon has pushed up about one inch & is green to that extent—such is the length to which the spring has gone here—though when you stand up the green is not perceptible.  It is a dull rain dropping & threatening afternoon.— inclining to drowsiness—

I feel as if I could go to sleep under a hedge—

The landscape wears a subdued tone—quite soothing to the feelings—no glaring colors.