How old and large can giant sequoias get?

The answer

Giant sequoias (Sequoiadendron giganteum) are the largest trees on Earth by total volume. The General Sherman tree in California's Sequoia National Park stands 275 feet tall with a circumference of 102 feet at its base and an estimated volume of 52,500 cubic feet. Giant sequoias can live over 3,000 years; the oldest known specimen was approximately 3,200 years old when it was cut down in 1853. Their bark can grow up to 3 feet thick and is highly fire-resistant, and they depend on periodic wildfires to clear competing vegetation and open their cones for seed release.