Yates Flower Seed Swan Plant 40 seeds SKU: 137853 MODEL: 54176 Error. try again later You've successfully joined the club $ 5 .98 each Available on orders $50 to $1500. More info × Mitre 10 Variants Widely grown for its role as a host to the monarch butterfly. Unusual, swan-like seed pods. Features and benefits Attracts the monarch butterfly. Fun for kids. Flowering 14 to 16 weeks.