Seeds from Aristolochia maxima or Florida Dutchmans vine. Larval foodplant for butterflies. Growing to 50 feet in zones 9 to 11. A large and vigorous climber, it has large, six inch, rounded leaves and large clusters of ridiculously large, green with white or brownish red markings but color can be very variable flowers of the fantastic, Dutchmans pipe shape, each up to 12 inches in length.