The Japanese Maple bonsai tree is the most commonly used tree for outdoor gardens. This tree is small in size and has delicate foliage that changes colors in the fall from gold to red. The way that you prune your tree will determine the way that your leaves will look and the way that your tree will look in your garden. Your Maple Bonsai will need some shade in the summer and full sun for the rest of the year. Make sure to not plant your tree in a windy area as this will not help your tree to thrive outside.