All About Redwood Trees Tall trees. Redwood trees are very tall. The trees are taller than a house. They are taller than most buildings.They are the tallest trees of all. Why do redwood trees grow so tall? They grow as long as they live. And they live a very long time. Redwood trees can live 2,000years! Where Redwood Trees Grow. Redwood trees grow by the sea. It is not too cold or too hot. There is a lot of rain and fog by the sea. Redwood trees grow well in rain and fog. Bark and Seeds. Redwood trees have thick bark. Bugs do not like redwood bark. It has a bad taste. The thick bark helps protect the trees from fire, too. Redwood trees are very big. But red wood seeds are small. A red wood seed is as small as a tomato seed.