Everything needed to germinate and grow the world's largest tree! Giant Sequoias are native to California's Sierra Nevada Mountain Range, where proud giants such as the General Sherman and General Grant trees have wowed National Park visitors for years. Giant Sequoias are hardy enough to grow well in virtually any climate, and are loved and cultivated throughout the world. This truly majestic species, the most massive of all trees, can live thousands of years and attain monumental size—up to 300 feet tall with trunks almost 40 feet in diameter!