I grow sweet peas extensively and use grape vine stakes about 10 feet tall and put into the ground about a foot or two. Netting is placed between these; and the peas climb up the netting. Sweet peas are not in flower for long however; remember, you seem to want privacy and the flowers do not last all season. They are rather short-lived and this is something for you to consider if you want long term vines. The perennial version of sweet pea is too short and they do not really climb. Hops might be a better choice as they seem to get dense. I grow these too, but on the other end of the garden. At any rate, the grape stakes work very well and are sturdy, strong, rust proof, and not that expensive. Think about your choice of vine.

Hello Just kind of looking out there. Does anyone have a pure yellow sweet pea vine. Carol Z5N

Hello Carol, I don't believe there is a true yellow Lathyrus odoratus, but I grow Lathyrus chloranthus, an annual vine that grows to about 8 feet for me in a container.

There are several cultivars of blue podded English peas and I am not sure which one Baker creek is offering. They have been around since Noah got off the Ark, but not immensely popular. Blauwschokkers ( sometimes sold as Blue Pod) is a climbing pea. Large vine with pink flowers. Blue Pod Capucijners is a smooth seed pea used primarily dried in split pea soup. Blue Pod Desiree is a bush type whose pods are more purple than blue. No experience with Golden Sweet, supposedly came from India as opposed to most snow peas which came from China. Climbing pea with 6 foot vines. other than that I am in the dark. If you like to experiment with novelties, well worth trying.