Seeds from this wonderful native Milkweed or Asclepias tuberosa. Plants grow 24-36 inches tall and have flat umbels of honey orange flowers the first year. Plants are loved by butterflies. Soak seed in hot water for 36 hours sow on top of soil, germination in 5-20 days. No pre treatment needed. Hardy in zones 4-10b and likes to grow in medium to dry soils.