If there are no notification sounds, please refer to the following:  
 1) Turn up the volume in your phone settings in case the notification sound is not loud enough
 2) In Forest Settings, turn on notifications
 3) In your phone settings, allow Forest to send notifications.  
 4) Turn off "Do not disturb" mode  
 5) Turn off "Silent" mode, or allow vibration notifications on Silent mode, so even with no sound, you will still get vibration notifications when planting is finished.
 6) When you are planting, your phone screen must be turned off.

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