by Terry Erasmus February 05, 2016 4 Comments

I try my best to keep a photographic record of the trees I grow. I generally succeed and find that it helps to motivate me when I feel I am not getting anywhere with a tree. Looking at photos of what the tree started out as, comparing it to what it looks like at that moment will tell me whether I am making progress or simply going around in circles. To you reading this blog I would also encourage to get into the habit of taking pictures whenever the tree makes it onto your worktable. 

In this post I will relate the photographic story of a collected little shohin sized wild olive. It begins with a friend who was kind enough to invite me to go on an olive dig on a farm in the Overberg area. I don't often dig trees, as I have too many trees already, but I was keen to go with in the hopes of finding some good material. It just so happens that we were quite lucky that day and I was able to find a few trees which offered a lot of potential.

Newly collected wild olive for bonsai

Image caption. Some of the collected olives, a little while after being collected and showing new juvenile growth. Photo taken in November 2013.

So collecting the trees and doing what we could to ensure they pulled through the ordeal best I eventually got them home. I was also keen to try out what was at the time, a new mix; my Professional Mix. So all of the collected trees were potted into this mix and treated in the usual manner ie. bright shade, water and of course plenty of BonsaiBoost.

Collected olive pushing new growth

Image caption. I was very excited about this little olive, particularly the massive base for its size. Here you can see how well it has recovered from being collected. The matchbox helps give you an idea of the size. Photo taken in April 2014 about 6 months after being collected.

The idea I had in mind for this tree was a clump style or as it is known in Japanese; Kabudachi. In Charles Ceronio's great book of bonsai styles of the world he writes about this style being often found in nature where seeds of the same species begin growing in close proximity and as they mature the base of the trees fuse. As such they eventually exist on a common root system however with multiple trunks. When styling trees in this style each "trunk" is treated as an individual tree.

At this early stage the aim was therefore to grow several trunks and of course the best way to do this is to allow the shoots to extend as long as possible, as this will cause them to thicken at the base.

Root development

Image caption. I wanted to check on the roots to see how well the Professional Mix had done (with BonsaiBoost fertilizer), and I was very pleased with the results. Photo was taken in September 2014 so a mere 1 season after collecting was all it took for the container to fill with roots.

BonsaiBoost was given and replaced every 2 months. I wanted sustained development without giving excessive nitrogen which would simply have led to excessively long internodes, meaning that on a tree of this size I would had to have restarted a trunk/branch several times to get a bud where in future I could cut back to.

Further development on a collected olive bonsai

Image caption. The new growth has thickened and hardened off now, some progress in the right direction has been made. Photo taken in February 2015.

It is so important that you get the right foundation for any tree you design. Without it, years of development will be for nought and you will have to restart the tree. Not to criticize other people's trees, but I have seen way too many olives (especially olives!) which were collected and have significant trunks only to see that the artist rushed development of the branches in order to begin developing the canopy. The price for this was branches which were simply too thin, without taper and thus boring. Had the artist take more time to allow the branches to develop more before beginning with ramification they would have laid a more solid foundation with more potential for later development.

Olive bonsai sacrifice branches

 Image caption. The most important "secret" I could probably ever share with you is that of the sacrifice branch. It's not pretty but they work! Photo taken June 2015.

Thickened branches on the olive bonsai

Image caption. By choosing smaller material to collect, I have short tracked the amount of time I will need to develop a convincing bonsai. You can already see just how much the tree has changed, and in particular how the main branches, or in this case "trunks" have developed with the help of sacrifice branch development. Photo taken June 2015.

Its important that you do not cut the sacrifice branches too soon. I have trouble with this sometimes, my hands itch to go grab a pair of scissors or a branch cutter - I guess its my neat freak nature - but I usually gain control in the end and the branches are safe for a few more weeks.

Sacrifice branch for trunk thickness

Image caption. A sacrifice branch being used to thicken a branch. Photo taken January 2016.

The thickened branch

Image caption. A close up of the base of the sacrifice branch in the preceding photo. The section to be sacrificed is the growth after the first shoot more or less in the center of this image growing at a small angle to the vertical.

Adventitious budding on an olive

Image caption. A new shoot desperately needed for the back of the clump. (Center of the image)

Another great advantage of sacrifice branches is that they allow the tree to build up a lot of energy. When you cut the sacrifice branch at the right time, when the tree is actively growing strongly, then that energy must find a vent. This venting takes place through pushing new buds along the section of the branch which remains, but new buds will sometimes pop out of the tree in unpredictable places. This does not happen with all trees, especially when the wood or bark has reached a certain age, however in olives they tend to bud anyway, even when rather old. In my little project I desperately needed some more branching at the back of the tree, which is important to give a bonsai tree depth. When I did a harsh cut a couple month back I was lucky enough to get a bud popping in just the right place! This new shoot will be allowed to develop so that it can thicken, after which it will be cut back to get it to divide.

Just another reminder is that you should always use sealant to protect or cover cuts. It not only help to prevent the tree from becoming infected with something but it also helps to prevent loss of sap. Lost sap means lost development, and growth is what we want lots of at this stage of the trees development.

Wiring of young shoots

Image caption. It's a good idea to wire the shoots gently while they are young so they are at least roughly in the positions you want for the design of your tree. You can always fine tune later.

When you do work on the tree and cut back the branches, and perhaps even defoliate to make it easier to wire, it is easy to work on the structure of the tree. With the leaves out the way wire can easily be applied to the branches. Use aluminium wire for deciduous trees roughly of the same thickness as the branch you are required to bend. However this is a generalization and if the branches are still a little soft and not fully hardened (still have a green colour) then it is best to use thinner wire which is softer. The bark of young olive branches is paper thin. In Japan when wiring azalea which have the same characteristic, they will first wrap the wire with paper to protect the fragile bark and thus prevent scarring. On this little olive I am not going to bother with that as it needs to age a lot more and during that time, any scars created will have naturally become invisible.

Top view of the olive bonsai

Image caption. To ensure that you are developing your tree with an equal amount of growth in front, back and sides take a look at the tree from the top. It should have a roughly oval or round shape, if its flat in any one direction then you should focus on developed in that area.

So starting out as a collected tree, planted in a container for the first time in September 2013 till today which is roughly 2 years later the tree has developed strongly thanks to the good initial recovery of the tree, generous root development due to the the use of a fast draining growing media with plenty of oxygen exchange and of course sustained release of nutrient rich fertilizer in the form of BonsaiBoost which could support the development of strong and numerous new shoots.

Current view of the olive bonsai

Image caption. The current stage of development. Photo January 2016.

These photos were taken with a smartphone and as such there is a fair amount of lense distortion but I hope they give you an idea of the amount of development which can be achieved on healthy material in a very short space of time. The goal at the moment is to continue developing the thickness of some of the branches and further the ramification of the tree.  The following image is a scan from a Kokufu ten exhibition photobook which I am using as reference and also inspirational material. I would strongly advise you to study coffee table type books on bonsai or scour the internet, saving images of trees which appeal to you. I am certain that by repeatedly studying these images they become ingrained in your mind and become a resource from which to draw when you are designing a tree. Of course nature cannot be substituted so be sure to study trees on your way to work, school, university or whenever you are afforded the opportunity.

My goal for the olive

Image caption. One of my inspirations for the olive.

Looking at the photo above maybe in another 2 years I will have gotten closer to my goal. It's a bit hard to see with all the leaves on the tree but it's getting there, I will have to write a follow up on this article then. I even have the pot for it already, a first generation Yamaaki drum style pot!

Hope you enjoyed the post and please don't be shy to ask questions or make comments below.

Terry Erasmus
Terry Erasmus


4 Responses


February 17, 2016

Hi Joe, that’s a very good question. I could ask a different question but in the same sort of context. When does a boy become a man? Depending on who you ask I am sure you will get a range of answers. However to attempt to begin to answer your question I would say that there is no single act or stage by which one can say it is now a bonsai. For example placing a rooted cutting in a pot does not make it a bonsai. Going to the local retail nursery to buy a bag stock tree, chopping off the roots and some branches, wiring it and sticking it into a pot also does not make a bonsai. I believe a tree matures into being a bonsai tree, along the way it picks up character (same as we as humans do as we mature) at the hand of the artist. At some point the artist can stand back and declare it a bonsai I guess. So yes I agree with you, its very subjective, what you and I call a bonsai compared to what the greater public would call a bonsai may be worlds apart. There is no tick box though.


February 17, 2016

Hi Terry,

What factors differentiate bonsai from pre-bonsai? Is there a definitive point were pre-bonsai becomes bonsai or is it the subjectivity of the artist.



February 06, 2016

Bill you should best wait till when the tree has the most amount of energy, typically the same time as when the species would be repotted. This is usually in early spring at the bud swelling stage. At this time the tree has a lot of energy so the chances for its survival are good. Post-collection care, and having a good success rate with it comes with experience. However there are a few basic tips but I will have to write another blog on the subject as its too much info. However using a very fast draining mix (such as pure LECA or the Professional Mix) is the key.


February 05, 2016

When a tree is collected from a field. What preparation stages for collection does one need to do. How does one treat a tree , assuming it’s tap roots are cut off, to avoid the tree from dying.

Leave a comment

Comments will be approved before showing up.

Current Tree Talk

Seasonal Work on an Upright Hackberry
Seasonal Work on an Upright Hackberry

by Terry Erasmus June 20, 2017 4 Comments

At the end of each growing season deciduous trees need to be worked on. The tasks which need to be completed include removing the dying leaves, cutting back twigs where needed, wiring and general assessment of the trees development over the past season.

Read full article →

Kusamono Appreciation
Kusamono Appreciation

by Terry Erasmus May 22, 2017 1 Comment

Kusamono is essentially a planting which may consist of anything including grasses or flowers. The material used in Kusamono plantings are often free; you can collect them growing just about anywhere if you go for a walk. You may find many of the plants suited to these plantings are even considered weeds!

Read full article →

8th World Bonsai Convention, Saitama, Japan. 2017
8th World Bonsai Convention, Saitama, Japan. 2017

by Terry Erasmus April 28, 2017 1 Comment

Japan hosted the World Bonsai Friendship Federation Convention, after a period of 20 odd years. We were spoilt with 3 days of bonsai of the highest standards. A huge draw card of the convention to local and foreigners alike were the 300 some top class bonsai on display.

Read full article →