For example, like many other bonsai, the maple bonsai must be replanted once every year or two, dependent on the type of maple that you have. Japanese maples tend to be used, as this species of tree is traditionally associated with bonsai growing. However, as the art of bonsai growth has evolved, other forms of maple bonsai have come to the forefront, especially in the United States and Canada. You can use a smaller wire that is double layered. This will provide equal strength to the thicker bonsai wire and do no extra damage to the tree. This is extremely convenient, especially if you already own wire for a smaller tree and want to work on a tree that has since matured. You can purchase bonsai wire from specialty stores and nurseries. You will need the same types of tools to maintain them, and you can use the same style of wire to help guide the trunk and branches of the bamboo. When you are pruning bamboo, like many other bonsai trees, there is a certain time of year that pruning is best done at. When you prune your bamboo is dependent on the type of bamboo that you have. This stage is vital for the survival of a bonsai plant, and many plants will die after several months if they cannot go into dormancy. Once you have ensured your bonsai plant has the right growing environment, it is important that you water it properly. Because the bonsai plant grows in a small, crowded pot, the watering needs are much more specific to the bonsai than they are to the ground grown tree. In addition to this, poorly chosen soil has a tendency to break apart, requiring the roots be cleaned yearly. This can be particularly damaging to pine bonsai trees, as well as junipers. If you want to use soils prone to breaking apart or decomposing, such as organic soils, you will need to make certain that the tree you use this soil type with is able to handle root bearing at least once or twice a year. This can be done indoors, so long as the temperature near the plant remains cold enough that the tree does not come out of dormancy. This is particularly important, as a tree coming out of dormancy too early can cause problems. It is possible for ficus bonsai to be maintained year round, although this can damage some species of ficus.