38+ How Fast Do Bonsai Trees Grow PNG. As highlighted earlier, most bonsai trees take anywhere between 10 and 15 years to fully mature. If you grow a bonsai tree from its seed, an average bonsai tree can take up to 5 years to start looking as a real tree.
It also depends on the kind of tree.
So, whenever you need to prune your juniper, do so at the bottom of the tree, otherwise, you will risk your bonsai as it doesn't tend to grow well from bare tree parts. Bonsai trees come in a wide variety of sizes. Fast growing bonsai require more care than slower growing bonsai, including watering. The lars anderson bonsai collection at the arnold arboretum in boston has some bonsai trees from the 18th century.
