Bur oak seeds will not germinate until they have been exposed to cool temperatures and moist conditions for multiple weeks, sometimes it will take longer. Check Out The Sacred Plant Co Seed Selection How to Grow Bur Oak Seeds! # 1 | Seed requires 24 to 60 days cold moist stratification. Stratify bur oak seeds by placing them in a moist mixture of sand and peat moss and then storing them in a cool location. You can store them in the refrigerator in plastic containers or food