Culture
Easily grown in average, medium, well-drained soil in full sun to part shade. Prefers moist, humusy soils. Somewhat difficult to establish.
Noteworthy Characteristics
Porteranthus trifoliata, common called Indian physic or Bowman's root, is an upright, clump-forming, somewhat bushy perennial which typically grows 2-3' (less frequently to 4') tall. A native plant to the eastern and southern United States (including Lawrence County, Missouri). Features masses of slender, 5 petaled, star-like, white flowers (1" across) held in loose corymbs on wiry, branching, distinctively red stems in late spring to early summer. Attractive red calyces persist after petal drop. Trifoliate, almost stalkless leaves feature oblong, serrated, olive-green leaflets (1.5-4") which turn red in fall. Sold both as Gillenia trifoliata and Porteranthus trifoliatus.
Genus name honors Thomas Conrad Porter (1822-1901), American botanist.
Specific epithet refers to the trifoliate (3-parted) leaves.
Problems
No serious insect or disease problems. Probably needs support.
Uses
Interesting plant for the border or native plant garden. Mass to take advantage of the airy effect of the bloom. Attractive red foliage in autumn.