Incense

Incense reduce the growing time by 40% and gives a Level 2 wither time to all plants on the farm.

Update:

Wither time is the lesser of 3x original wither time or approximately 1.5 hours. so if the original wither time was 10 minutes, you get 30 minutes. if the wither time was 2 hrs, you get 3.5 hours. Wither time of 2 days gets 2 days + 1.5 hours, approximately