if you want to grow a bonsai tree from seed , you need to be a very patient person. To begin the process it can take a couple of months for the seed to germinate. Then, you will need to carefully take care of the new plant for many years. It can take a good 5 years for a nice solid tree to grow and get ready for trimming and pruning. For step by step instructions on growing a bonsai tree from a seed you can get the book Bonsai Basics by Christian Pessey and Remy Samson. Be sure that you have the extra time to dedicate to taking care of your new seedling, it will be difficult to get your tree to grow and mature without the proper care and attention it needs.