The importance of this medicinal herb for respiratory sickness cannot be overstated. The resin from these flower is used as traditional medicine, and I will not be without it. Grows 24 inches tall. Chemical-free heirloom seeds, 40 seeds per packet. Free shipping on orders over $32. (Botanical name: Grindelia integrifolia)

How to grow: Lightly rake into soil in autumn or early spring as soon as ground can be worked.