United States, South Carolina, Pickens, SCBG -- South Carolina Botanical Garden, Clemson University, Clemson. (Clemson University Horticultural Gardens). Ca. 0.5 mi W of jct of Co. Rd. 320 (Perimeter Rd., Clemson University) & US 76. ON S side of Co. Rd. 320; ca. 1.5 mi due SE of town of Clemson. On S-facing bank across from the restrooms.