Wither

Crops in Farmville will wither if they are not harvested in time.

The amount of time crops are guaranteed to stay ripe is still equal to the growth time. This means, if you plant a crop that takes four hours to grow, it will still stay ripe up to eight hours.

After the time your crops are guaranteed to stay ripe, they now have a variable cushion of time up to half the time it takes to wither. However during this cushion time, crops will wither randomly at different times.

Strawberries (Example)

 * 4 hours to grow
 * 4 hours of ripeness
 * up to two more hours of ripeness, however during that cushion time, cushion time, crops will wither randomly at different times