I've never had a great display of sweet peas before (poor germination). This year I bought some 6-packs already started and planting them along the side of the house and they turned out awesome even though they are North facing and in a tight space between the sidewalk and house.
Joanna, they are gorgeous! What do you have them climbing on? I've never had much luck with them here either, but maybe I should buy some starters? I certainly hope they reseed for you so you can have more next year! They work beautifully there!