Seventeen experimental burns on various sandy clear-cut sites in southeastern Manitoba were broadcast seeded with jack pine (Pinus banksiana Lamb.) at a rate of 1.24 kg/ha to determine the specific treatment combinations that would produce acceptable regeneration. After two growing seasons, the results were predominantly unsatisfactory, and the burns were reseeded at a rate of 0.62 kg/ha. Regeneration of jack pine after seven more growing seasons was a complete failure on the dry and fresh upland sites but was consistently more than adequate on the moist lowland site. The critical deficiencies of soil moisture on the dry and fresh sites and the presence of a high water table within the soil profile on the moist site are believed to be responsible for the mixed results.