Sweet peas are beautiful, flowering stalks with a fragrance that captivates any passers-by. They’re native to Sicily, dating back to 1699, when monk and amateur botanist Francis Cupani first publicly shared seed from his namesake variety. Sweet peas make delicate cut flowers, lasting only a few days in a vase, but their fragrance fills the room. Takes patience and dark, cool conditions to germinate them—soak seed overnight before planting. Likes full sun but cool roots, so mulching is recommended.