04/01/2026
What prevents trees from burning down during a burn?
All native tree species in illinois have some way to handle fire due to how prevalent it was on our landscape. The most common defense trees have against fire is thick bark that prevents the fire from burning it. In addition to this most trees will do something called self pruning where they purposefully drop their lower dead branches so the fire cannot creep vertically up the tree. In this video this oak had fallen exposing its inner wood to our burn. You can even notice how it is burning from the inside out where the inner wood is far more flammable than the bark.
Video: stump burning down