how tall is a forest tree
View full size image. The tallest tree in the world, a California redwood, stands 379 feet (116 m) tall, or slightly taller than a football field is long. Redwoods of the past that have since been cut down probably stood even taller, and may even have reached the theoretical maximum height for trees.s trees grow taller, increasing leaf water stress due to gravity and path length resistance may ultimately limit leaf expansion and photosynthesis for further height growth, the biologists wrote in a 2004 article in the journal Nature. This limit lies at or just above 400 feet.