First Quality Native Grass 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 This is probably the most popular native grass of the tallgrass prairie. It is a warm-season grass, so it does not really get going until the summer heat sets in. It grows very tall in fertile soil, and the stems turn a lovely rusty color in the late fall and into winter.