Hi Junan,
I am not too familiar with indoor gardening. I actually just started trying in-door gardening in my game and the plants seem to be doing okay. I have winter turned off and fall set to only a few days.
Anyway, what I have found is you may want to make sure the full ceiling over your garden area. After about a sim-day they should revive themselves.
Something else that was suggested is a mod from Nrass called Debugenabler It may help get stuck plants to next growth state.
The other thing that may help is to reset everything via Nraas MasterController
From City Hall > Nraas > M.C. > Town > Reset Everything.
I don't know if this will help, but it's a few things to look over and try.
MrsFlynn
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Reference Links:
Gardening after winter and dormant plants
http://forums.thesims.com/en_US/discussion/751458/gardening-after-winter-and-dormant-plantsSeasons - Why are my plants dormant in the winter if they're planted inside?
http://modthesims.info/t/491808