How long does it take an oak tree to grow 30cm high?

Is a baby zebra warm or cold environment? What do you get if you cross a sheepdog with a tulip? Is Manure is a form of organic fertilizer.? How should I trim a birch tree to ensure its health and longevity? Why aren't hydroponic crops more common? How can I effectively trim cherry trees to promote healthy growth and fruit production? Is the tree blocked the wind a personification? Why are my kentia palm leaves turning brown? Can african violets be put oside in the rain? How should I wrap arborvitae for winter protection? Is fig wood toxic when burnt? What are the different names of hostas? Where should you start composting? What is a tube in a flower that makes seeds? What does poison oak sumac and poison ivy rash look like on the body? What does Mary find when she is exploring the corridors of misselthwaite in the secret garden? What do you call the flower holder with a spike that pushes into the ground for a cemetery? Which is the best month to move a peony? What kind of flower is resistant to the winter weather that I can buy as a gift? Is it more dangerous to breathe the smoke of roasting cashews or burning poison ivy?