Ever wonder, "How long does it take a Christmas tree to grow?" We’ve got the scoop on how your tree transforms from a tiny sapling into a holiday star.

The Jonsteen Co. has six types of Christmas tree growing kits in addition to other kinds of tree kits. The California company has about 12 permanent workers but hires more people for big projects.

I looked after a large citrus collection as a professional gardener, and spoke to a fruit tree expert to showcase how to grow a lime tree in a pot, including the most important factors to get right.