This is a really great site! Here is a link that might be useful: Seed guide

No personal experience, but it appears there are strong germination inhibitors in the mesocarp (flesh of the fruit) and care must be taken to clean the seed - "Typically, the seeds are soaked in water at room tem-perature for 48 to 72 hours (Schulte and others 1992). Treated seeds germinate in 20 to 25 days with a germination rate of 50 to 80 percent " "The seeds are sown in seedbeds or directly in containers with two seeds per container. It is recommended to use a light and permeable substrate, maybe because inhibitors need to be washed out before the seeds can germinate. Germination starts after about two weeks and is normally terminated after four weeks"

"Seedling Development- Germination is epigeal. It approximates 50 percent of sound seeds and appears to be correlated with length of the maturation period. Germination of seeds collected on August 31 was 18 percent but increased to 66 percent for seeds gathered during cone disintegration about September 23 (26). During poor seed years, the yield and quality of seed decrease and insect damage increases (27,28). In a good year, seeds averaged 78 percent filled, with only 3 percent infested by insects. In a poor year, only 36 Percent were filled, and 29 percent of that were infested by a seed chalcid, Megastigmus specularis. Fraser fir seeds germinate well on mineral soil, moss, peat, decaying stumps and logs, and even on litter that is sufficiently moist. When seeds germinate on surface litter, the seedlings usually die during dry weather. Moss and peat commonly remain damp, however, and the appearance of moss on the forest floor indicates sufficient moisture to make germination possible with survival throughout the growing season (19). Stratification of Fraser fir seeds may not be wholly necessary. Stratification for 60 days in peat moss at 3� C (38� F) increased the speed of germination but did not affect the number of seeds germinating. Germination and initial establishment are best under a forest cover. The greatest obstacle to natural reforestation is the desiccation of the moss and peat layer after cutting or fire, followed by surface drying of the mineral soil. Once established, growth is best in full light. Under a dense canopy, Fraser fir may be only 0.6 to 0.9 in (2 to 3 ft) tall in 20 years. In old-growth, all-aged stands, it may take 40 years to attain sapling size. In the absence of shade, it grows much faster. Planted seedlings in cutover forest averaged 2.5 in (8.2 ft) tall in 11 years, with 0.6 m (2 ft) of growth in the 11th year. Under favorable conditions of weed control and fertilization, Christmas tree plantings grow to 1.8 m (6 ft) in 6 to 8 years." Here is a link that might be useful: All that was from here

Never done it intentionally but I do get a few volunteers every year that pops up through the rock topdressing.