If you do not prune them at least once a year they can grow as large as thirty feet. If you are just looking for a good tree to provide you with plenty of delicious fruit from and to keep your yard shady, a standard sized tree would be the perfect tree for you. Standard sized fruit trees take a very long time to reach their full height, but they usually begin to bear fruit after only three to five years. You should usually start by putting in the proper amount of pesticide, and then top it off with all the water. Now comes the spraying. The goal is to spray the same amount over all the areas. You still don t want to spray so much that enough builds up to drip off of the leaves. Usually you will want to get a ladder so that you can get within spraying distance of all the portions of the tree. It is most popular in South Africa and the southern USA states. Until about 20 years ago, Valencia oranges made up a strangely large portion of the orange market due to its popularity. It is thought to have been invented in China. It has almost no seeds. Another subgroup of Valencia oranges are the Rhode Red Valencia oranges. If you are just looking for some temporary shade for your garden, you should stick to a short lived tree. But if you plan on keeping it for years, go for a long lived tree. If you decide on a short lived plant, you are probably looking for something with speedy growth. This means the root system will be particularly aggressive, so be sure not to place it near any septic tanks or other deep rooted plants. Once your tree has started to enter the picking stage, never leave any of the fruit on the ground that is bound to fall. Also, be careful to get every piece off of the tree. Even if it is an ugly looking fruit that you don t want to keep, you should still pick it and throw it away. Once these fruits begin to rot, they provide a perfect home for unwanted insects or diseases that can transfer to the tree itself. To prevent this malady, you should prune your trees often to encourage good air circulation. Buildups of moisture are the main cause of the brown rot. Also when you are done picking for the season, you should get rid of all of the leftover fruits in the tree or on the ground. A cytospora canker is a disgusting dark, soft area on tree branches.