Climbing geranium: how to grow?

[evaperonspoodle]

I need to replace a climber and just came across climbing geraniums. I love geranium plants, and wonder how similar they are? The website claims they spread up to 1m, is that so? I need a climber that I can grow in a pot and up a trellis against the wall, would they be suitable?

Could you give some more info as to what the catalogue says? Is it a bedding geranium (a pelargonium)? Some of them can be trained onto a frame or wires to get quite tall, but they are not climbers, and they are not hardy, and they are completely different from hardy border geraniums.

www.yougarden.com/item-p-400083/climbing-geranium-antik-collection

They're not strictly climbers, like clematis etc., they just grow tall, so would need to be tied in to a support, and they won't be winter hardy, so would need some protection over winter.