White trillium - Trillium Grandiflorum Perennial Bare Root six (6) Live Plants. Trillium are the royalty of woodland gardens. In spring, established patch in the wild is something to remember. Plant 4 inches deep in humus rich soil that does not dry out. We ship our plants bare roots, placed in wet paper towel, plastic bag and box. Once you received, please plant immediately. We ship life plants only MONDAYS, so they would not be in transit over the weekend.