91-98 Days to maturity. Asclepias tuberosa. Butterfly Milkweed Seeds. Perennial, non-GMO, heirloom, open-pollinated. Butterfly Weed Asclepias seeds invite perennial color into your home, patio, or garden. Asclepias flowers are easy to grow from seed and have wildflower-like hardiness that keeps them thriving in poor, dry, and rocky soils. Butterfly Weed seeds grow brilliant 12-36 inches tall weedy uprights with explosive clusters of golden orange blooms known as the food of choice for monarch butterflies and caterpillars. Butterfly Weed Asclepias seeds grow sun-hardy plants native to the rocky terrain of the eastern United States and are an ideal fit amongst any efficient, dry, or xeriscaped property. Approximately 4,000 Seeds/Ounce