I have a huge green thumb, so I read the update about gardening a few times to make sure I understood it.
The harvesting period for plants grown via gardening has been changed to one week (Earth time).
Furthermore, the crystal feeding period for certain seeds has been changed to two days (Earth time).
At first I thought the same things you guys did, but after reading it a few times.
The HARVESTING period for plants has been changed to a week: what I think means when they're ready to harvest instead of dying roughly 1.5 days later, they will not wilt for another week.
Same thought about the feeding period, instead of getting about 1.5 days to feed you will have 2 full days.
I think they're doing this for the more casual player who doesn't log in everyday. What do you guys think?