Georgia's hardiness zones 7 to 9 make ideal growing conditions for some unusual plants native to this state. Rare Georgia plants grow on the forest edge, in flood-prone areas and naturally in the wild. Nature lovers find blooming flowers at all times of the year with these native beauties.
The fly poison (Amianthium muscaetoxicum) is an unusually shaped herbaceous perennial. The other common name for this plant is stagger grass. Fly poison grows from a bulb. All parts of the plant are toxic, particularly the bulbs. The plant reaches an average height of 1 to 4 feet with a width of 2 feet. Small, star clusters of white flowers form on the bottom of a flower stem and bloom upwards. As the flowers age, they turn green and form small seed pods. Fly poison grows in hardiness zones 4 through 9.
The giant ironweed (Veronia gigantean) is unusual in that it is most commonly found growing naturally in flood-prone areas of Georgia. In these areas, the giant ironweed reaches up to 10 feet in height. Non-wild plants typically reach an average height of 5 to 8 feet with a 3- to 6-foot span. According to the Georgia Natural Plants Society, the name derives from the iron-tough stem on this herbaceous perennial plant. Dense purple flower clusters form unusual disk shapes with serrated, elongated leaves during the latter part of summer. Giant ironweed grows in hardiness zones 5 to 8.
Interesting flowers appear on one stalk of the cranefly orchid (Tipularia discolor) during August and September. The plant produces one single leaf and a single stem with approximately two dozen small purple flowers. According to the Georgia Natural Plants Society, naturalists find cranefly orchid in every county of Georgia. The actual plant height is only 4 inches, but the flowering stem reaches 1 to 2 feet with a plant width of 4 inches. Cranefly orchid prospers in hardiness zones 4 to 10.