Can the flower, sweet pea be grown in upstate NY and come back annually?

if so please tell me the conditons it needs to stay alive like the hours of sunlight and so on please and thank you.

Can the flower, sweet pea be grown in upstate NY and come back annually?
While annual sweet peas do self sow, there actually is a perennial sweet pea which does come back every year. My has been in the garden for 5 years now and gets more robust every year. They like full sun, a trellis or fence to climb and reasonably moist soil.They can grow in Nova Scotia (where my plant came from out of a relative's garden) so you shouldn't have a problem with upstate NY.
Reply:Sweet peas will never "come back". They're an annual. If you're lucky, they'll reseed. They need a long growing season, support, and full sun.
Reply:yes it can be grown in upstate ny, they are an easy plant to grow. they prefer the sun, keep soil moist. you can buy a package of sweet pea seeds and start them inside 4-6 weeks before you can plant them out side. after the last heavy frost of the year (mid may- june)plant in ground.just keep moist and enjoy the sweet fragrance of them