I have those tow beautiful 15 months old Cranberry vines that have grown from seeds, growing in a 4X6X9 inch container.
The only place I have available for them right now which is outdoors, is on the outside of my window.
Last winter, there were only tow vertical short uprights which I attached to the soil with a stick to help them stand the winter storms.

Back to this year - by end of July, a lot of new upright growth was observed and by now I have about 100 of them, which as I realize should carry the precious flower buds for next summer.

The risk of hard frost or extremely low temps for Cranberries is not an issue around here, but we get storms with heavy rain, hale and strong winds (sometimes up to about 100Km/h by that window ) during winter.

How hardy are those uprights going to get? should I apply some physical support? or should they be hardy enough to face the weather described above?

As I mentioned before, that is the only location available for them where they can get thier required chilling hours and I really don't want to loose my buds.
I'm the only one in my area growing Cranberries so I don't really have anyone to ask for advice,
Any of you who has experience with growing Cranberries in a container, please, share your knowledge.

thanks!