Among the numerous materials we use for bonsai today, it is the small-leaved species that are most suitable. In the Rhododendron family this is generally but not limited to the Azalea species. The two principal Azalea species that are used for bonsai are Satsuki azaleas and Kurume azaleas though there are many other Azalea species and hybrids that are suitable and these should not be discounted as potential bonsai material. All Rhododendron species have the ability to withstand root pruning and all will bud back with ease.

Satsuki Azaleas

They are different from normal garden azaleas in that they bloom later in spring. Many people believe azaleas to be the most beautiful of all flowering plants. There are groups of enthusiasts who enjoy working with material and nurseries that specialize in Satsuki. In Japan there are Bonsai shows just for these marvellous trees. Also there are two schools: one trains the tree strictly to display the flowers, and the other grows and trains the tree as a classic bonsai which also displays beautiful flowers.

While they are not really the easiest to grow they are not all that difficult if you understand the plant and provide a little special care.

Personal Experience in Propagating Azaleas

In June 2003 I struck a number of Satsuki azalea cuttings primarily Osakazuki (large sake cup) and Shinny-no-Tsuki (eternal moon). I did this in response to the fact that, at that time, all importation of Azaleas from Japan was prohibited in North America. (Since changed) I researched a number of books and articles in Bonsai magazines on the subject of Azalea propagation and training. I came across one article that seemed to answer most of the questions I had and at the same time provided a clear six year path to the development of Satsuki Azalea Bonsai. I followed the article religiously and much to my surprise over 90% of all cuttings struck.

I now have a number of four year old Satsuki Azalea Bonsai which were allowed to flower in 2006 for the first time. An azalea branch or trunk will stop growing once a flower bud has set. Because azaleas are basally dominant they have to be forced to grow tall. This is done by removing all buds and new leaves except those at the top. In three years many of my trees exceeded 24 inches before I started branch wire training.