Seeds from this Tweedia Turquoise Blue Star Milkweed or Oxypetalum caeruleum. A wonderful and rare color addition to your butterfly garden. This twining perennial from Brazil will grow up to 10 feet with support. The gray/green leaves along with the stems are covered with fine soft hairs. The blue stars are very unusual for milkweeds. Hardy to 25 degrees this perennial loves full sun. Zones 6-10.