But if you have a SHTF scenario happen in the fall to winter you’ve got to have some bottled vitamin C to get you by until the first crop of rose hips is ripe enough to harvest.
Actually rose hips stay on the bush all winter long. That is until the birds hit on them in about february. No need to feel rushed to harvest them.
I harvest Rose hips in the fall, dry them, and harvest enough to get me through winter. I also grow a few lemons indoors on a dwarf lemon tree than blooms year around.
In the spring, one of the first plants for vitamin c to look for is dandelion greens.