Monarch Milkweed Garden Planting milkweed is one of the easiest ways to make a difference for monarchs. Milkweed is the sole plant critical for the monarch butterfly’s life cycle and survival. We curated a new seed blend combining four native milkweed varieties that grow across the United States and added four nectar-rich monarch specific flowers to attract, feed and host the monarch butterfly at every stage of growth and transition. Includes: 8 seed varieties, growing directions. Bag 7.25" high x 3.5". Milkweed Varieties: Butterfly (Asclepias tuberosa), Showy (Asclepias speciosa), Swamp (Asclepias incarnata), Common (Asclepias syriaca) Nectar Varieties: White Yarrow (Achillea millefolium), Gayfeather (Liatris Spicata), Joe Pyeweed (Eupatorium Maculatum), Black-Eyed Susan (Rudbeckia hirta) zones. 3–9 | seed. 3 g | coverage. 125 sq. ft.