By late May the seed pods are appearing. Individual plants can produce anywhere from about 350 (usual) to 8,000 seeds and the germination rate is between 40-100%. However, only about 2-7% of seedlings survive. Drought can kill off 95% of seedlings, but none of this negatively impacts the rapid spread of garlic mustard.

For a brief intro to this very invasive species, and more photos, please see: http://www.pbase.com/fwg/garlic_mustard