Hyacinth Bean plant
What do you do with these plants in the fall/winter? I planted 2 that have grown well, but no flowers or seed pods? (maybe not enough sun?)Do I pull the plants up, cut them back??
Hyacinth bean plant is not winter-hardy and can be killed by any frost, so it is typically grown as an annual in temperate regions. You can wait until the weather kills them or pull up the plants when they're no longer attractive.
Lack of sun can certainly cause poor flowering. Here are some other possibilities: