Wire prevents plants from entering final stage.
I had the wire before placing the plant, the plant grey normally on all stages except the final stage. Its brothers and sisters were all fully grown and harvested, Yet this one remained at the stage before the last one.
[ incase image is not working - http://i.imgur.com/m4YrlIA.jpg ]
Steps to Reproduce
Place wire running over plant.
This issue has not been confirmed by a developer yet.