The "move" activity can help here.
1. Select the containers you'd like to move.
2. Then tap the "Move" activity.
3. Fill in any information you want to save about the containers at the time of move, like a picture, fouling info, or a comment.
4. Then tap the "Save and Move" button
5. Tap the Growing Area Name in the upper left to show your other growing areas
6. Select the growing area you'd like to move the containers to
7. Then, using your finger, hold your finger on the circle with the number of containers and drag it to the spot where you'd like to record it.
Watch this example: