I started this tree from seed in May of 2007. Giant Sequoias are the world's largest trees in terms of total volume. They grow to an average height of 165-280 ft and 18-24 ft in diameter. The oldest known Giant Sequoia based on ring count is 3,500 years old. I don't expect this guy to grow over 3 feet though.
(click image for larger view)
Transplanted from germination container.
After a year indoors.
Moved outdoors and fertilized.
Responding well to summer heat.
Repotted into a redwood (ironic?) growing box. It was completely rootbound.
Trunk is about 1/2" thick now. Considering putting it in the ground for more rapid growth.
I kept mine indoors for about a year and a half but that was probably longer than I needed to. And I started mine from seed so it was just a little sprout at first. They do need lots of light and fresh air so you could protect it from the frost and snow the first 5-10 years but it should tolerate the cold after it gets established. They do live in snowy areas in the wild. It would be better to have it buried in snow that exposed to cold drying winds.
Cheers.