Smoke hangs low in the air at California’s Big Basin Redwoods State Park as some redwoods are still on fire on August 22, 2020. This increases their stability during strong winds and floods. We have lots of good data on this from tree-ring scars throughout the redwood range. The oldest known tree is 2,200 years old. Fire and Fungi Resistant. The fire return interval in coast redwood forests varies drastically with latitude, microclimate and distance from the coast. The trees' thick, moist bark often keeps the trunk from catching fire, while redwoods contain little flammable pitch, unlike fir and pine trees. The fire roughly burned 97% of Big Basin Redwoods State Park’s 18,224 acres. Redwoods are naturally resistant to insects, fungi, and fire because they are high in tannin and do … Big Ba… These trees have shallow root systems that extend over one hundred feet from the base, intertwining with the roots of other redwoods. (John Harvey) Historically, how many fires have burned through old growth redwoods? That happens in the absence of fire as well. The Children’s Forest grove in Humboldt Redwoods State Park, photographed in 2018, shows its recovery from the 2003 Canoe Fire. ... they need to regenerate. It is not uncommon for trees to reach heights of 200-300 ft. Redwoods are prolific sprouters and can sprout from stumps, the root collar, or along the bole. It’s going to be a while before it’s safe for us to visit these forests and assess the fire effects, and it will be longer still before we fully understand the short- and long-term impacts on the trees. Coast redwoods are naturally adapted to resist fire damage. Despite the resiliency of redwoods, there are many factors that are increasing fire danger and putting communities and forests at greater risk. 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