The seeds I planted last year in May did ok through the winter, and grew well this year. Seemed to attract slugs to start with that set them back but most are between 5 and 10ft.
The ones I planted in a raised bed filled with home made compost have done well planted along with sweet peas and runner beans that also need support, and forms a green screen between us and next door. The ones planted at the base of young trees climbed well but not so vigorously, but they self-twined around the tree well.
Being this far north I will see how they survive another winter before spending on well known varieties.
Regarding drying quickly. If you have the room then a dehumidifier would probably work well in a sealed room, with a couple of flat fans to get some circulation.