Why is there no elm tree forest in ire land?

How can I tell if my olive tree is being overwatered? What genus is the orchid? How can I use pebbles for landscaping to enhance the aesthetic appeal of my outdoor space? How can I obtain free grass seed? Is cotton a monocot or dicot? Why are my Norfolk Island Pine branches curling? Why is my succulent mushy and how can I fix it? Why is my plum tree not fruiting? What is a lylock? What is the different between monocts and dicots? Where can you find bamboo? What does a partridge in a pear tree represent? Is Jowar is food or cash crop? Why are the leaves turning yellow on my plant? Can you grow sunflowers in the southwest states? Where is The Sage Gateshead located? What is the Scientific name of lotus flower? What family does the Silver Maple tree belong? What types of soil do holly bushes grow in? Why do people plant garlic in their yards?