First Quality Native Wildflower Seeds – Current Lab Test Data Shown on Packet Exclusive Gold Vault Packaging – Provides 3X Longer Storage than Paper or Plastic with Triple Layer Mylar Gold Foil. Resealable/Reusable Zipper Bag – Perfect for Storing Excess Seeds Bulk Seed is Excellent for Immediate Planting or for Long Term Storage as an Emergency Seed Vault Detailed Planting Instructions on Back – Online Info also available via QR Code One of the most striking of native plants, Butterfly Weed lights up the prairies with its blazing orange flowers. Monarch Butterflies thrive on this plant, so it is a must for any butterfly garden on sandy soil. It thrives in rocky or sandy soil, typically in open fields or along roadsides.