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

What are the uses of chir tree? Does parsley grow in the ground or above ground? What is famous about the plant the 'jumping cholla'? Why is the bark falling off the tree? Is the vanilla orchid found in Malta? What is the figure of speech of the daffodils are tossing their heads in sprightly dance? Where young plants and flowers are reard? How long after planting grass can you safely walk on it? How long can mulch sit in a bag before it starts to degrade or lose its effectiveness? How should I properly trim grape vines to ensure healthy growth and abundant fruit production? What famous person planted a huge cedar tree in palaise des archevegues? Where do zebras get their water? How should I properly prune vinca plants to ensure healthy growth and blooming? Why are my cypress trees turning brown? What does smoking taste like? Can caterpillars lay eggs and if so, how do they do it? Can you apply pre emergent and put top soil on bare spots and put on you grass seed fertilizer mulch mix? Why is my hydrangea too big and how can I manage its size effectively? Why may a conker never grow in a tree? How can I rehydrate dehydrated lettuce for use in salads or other dishes?