1. Old Tjikko Old Tjikko trees are mostly found on Fulufjallet Mountians of Dalarna, Sweden. This tree is famous for its long lifespan, and commonly known as World’s oldest and longest life tree. The estimated life of Old tjikko tree is around 9,558 years. The age of this tree was first discovered by Carbon Dating. Due to vegetative cloning, the Old tjikko survives for long time. The life of its trunk is approx 600 years, but the new trunk is born in place of the older one. 2. Methuselah Estimated life of Methuselah tree is 4,847 years. This tree is commonly found in 2900 to 3000 … Continue reading 10 Trees with Longest Lifespan