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.
