The transition of fields from their late winter, washed beige to spring green is both imperceptible and relentless.   You don’t see it occurring, and yet it occurs all the same.  One day, everything is brown; on the next day there is the faintest hint of green, a few days later, where the grass is short or there is a lot of water, there are tongues or fingers of green reaching out farther by every hour.  There is no pinpointing the exact time* when the eye starts to see green instead of brown.  It spreads in pattern not unlike low mist or fire, and the land turns towards spring with sure, unhurried grace.

*I am sure with time lapse photography and running it through a computer to look at the spectrum you could…what would be the fun in that?