Nintendo 3DS. The first Bokujou Monogatari game localized by XSeed Games. [ Game Guide ] JP release = Feb 2014. NA release = Mar 2015. EU release = Dec 2015.
Spring tea leaves take 30 days to mature. But tea leaves don't grow during winter (says the bag). When do I plant them to have tea leaves during spring?
You can plant them during winter, and they'll still grow - they just won't produce any tea. Tea plants don't wilt, either, so you can really plant them during any season, and the next spring they'll produce Spring Tea Leaves as usual.