I haven't seen Leucojum (presumably L. vernum) naturalized beyond cultivated land, but it is not uncommon for other bulbs to appear in surprisingly remote places. After finding a colony of Kniphofia at 4,000 feet in the Mount Hood National Forest, a botanist told me she expected it had been brought in as seed or other material on logging or road-building equipment that had previously been used around a farmhouse garden (where these plants are common). Montbretia is often spread this way. Another mystery ascribed to road equipment is a colony of Iris douglasiana along Highway 26 between Portland and Mount Hood; the irises have hybridized with the local I. tenax there. Sometimes people also dump truckloads of garden debris in remote locations. I expect the surprising number of daffodils that we see around Oregon may have arrived that way. Bulbs can also persist for many decades after the habitation near which someone planted them has vanished. Jane McGary Portland, Oregon, USA At 06:10 PM 3/28/2012, you wrote: >I got a request from a non member who found Leucojum growing in a >wilderness area in Michigan. She was wondering if this was an >unusual finding. Does anyone know?