The Butterfly weed’s scientific name is Asclepias tuberosa,and the scientific classification is (Asclepiadaceae.)The height is 1-2 feet.The color is bright orange.The blooming period is June-September.Places to plant this is Rock gardens,roadsides,mass planting,and borders.It needs a little water,and full sun.The butterfly weed may take up to two years to become established from a seed.