Do you all have recommendations for flowering vining plants that grow well in shadier areas? I have a couple of arched trellises that I have been trying to grow beans and cucumbers on, but they're simply isn't enough sun. Other than some clematis, I don't know of vining plants that will do well on them. I have tried morning glories, but they don't thrive. They get 4-5 hours of full sun at the most.

I am in WI, zone 4, so that places some real limits on perennials.

Thanks - Geof