Kapok Ceiba Pentandra, separating seedlings and removing tap roots

A few people have been planting kapok seeds. Last year I planted a few. The growth rate of these trees was phenomenal. I forgot exactly when I planted these seeds. It was sometime last month. As you can see the first true leaves are pretty big on some.

I soaked the seeds until the water started turning cloudy. I have grown kapok seeds in only water before. I kept them in a little saucer and made sure the water stayed clean, and that the water only came up halfway to the seed. For these seeds pictured below however, I planted straight in a one gallon plastic pot.

My hand for scale

It is easy to break up the individual plants at this stage. The roots are growing long, but the fine roots have not grown enough to tangle themselves with each other.

I prune the roots of my kapok. Why? I do not want a huge tap root. I cut the lengths according to the size of the tree and the amount of fine roots. The longer and the more fine roots the more I cut.

This was one of the bigger seedlings and I cut just above the halfway point of the root.

I potted the plant with a blend of coconut husk, peat moss, and some soil with coarse sand.

The big trunk in front is approximately one year older than the seedlings behind it. Cutting roots stunts development for a time. Yet, you can see that the kapok is an aggressive grower. I have been working on these trees this last year. If you want to see my expiraments check out my other post: http://bonsai-misadventures.blogspot.com/2016/04/kapok-silk-tree-pre-bonsai-experiments.html

Cheers.   

Kapok the silk tree, pre bonsai experiments on a tropical

I have always collected seeds. wherever I went if i saw fruiting trees I have tried to take some seeds home. Sometimes they would not germinate. In the early days of the internet information was not as readably available. Now, information is limited by one’s imagination. There is stratification, scarification, dormancy, etc. Each plant has its prerequisite for germination. There is one plant that I have had one hundred percent germination. That plant is the Kapok. The kapok is a tropical plant that can grow 230 feet tall. It has buttressing roots that are tall enough to hide a person. It is a very impressive tree. I have searched for kapok bonsai on the information super highway to no avail. Well I found one example, but i crave more.

Kapok at Yamaguchi bonsai nursery in Culver City

Last year I collected kapok seeds from a tree at work. One year later and the results are incredible.

sapling Kapok one year old.

The growth rate was amazing. The trunk taper was phenomenal. This was looking to be a very interesting bonsai. After a year they have not lignified. I have wired them a bit. I have noticed because they are soft and grow so fast you have to keep an eye on the wiring. Let the wire bite into it a bit. The wire scar will heal very fast. Be vigilant though.

One year's growth

The saplings grow a palmate leaf that grows from the trunk. They look like a branch and leaves. However, the whole “branch” falls off after a while. The tree kept growing, and the leaves kept falling. There were no branches. I decided to nip it in the bud. I cut the growing tip and hoped that the plant would force branches out of the place where its leaves had left a scar. My gamble paid off and the tree started to grow branches.

True branches growing from the crotch

Here I wired a kapok in semi cascade style, han-kengai. It so happens to be one of my favorite styles. The trunk is green, so it is super malleable. I am very excited to see this tree develop in the next two years.  

I have brought you up to date on my experiment. I'll keep you updated. Cheers.

Update April 13

We have branches. Or at least that is what they look like.

Update June 11

Let me show you a recent pic of the tree pictured right above:

After I took the wire off the tree straightened itself. The problem is that the trunk has not lignified. The trunk is still green and not woody. The wire can cut deep into the soft tissue fairly quickly. Now, when I wired this tree i actually broke it in two places. The tree healed and I removed the wire. I thought that because of the scaring of the broken points the tree would retain its shape. I was wrong. Back to the drawing board I suppose. 

Update July 8

I tried something else. I chopped the kapok under the oldest leaf. It was just a knob. Four branches grew from that knob. Now my Kapok looks like a palm tree. Could this be a new style in bonsai? Palm tree style bonsai? 

All kidding aside, I liked where the tree was going, but I thought that it needed an even more dramatic pruning. So I chopped a different tree even lower. I cut at the place where I would like to see new branches grow. A week after the chop I saw one small bud growing out, it lives! 

It should grow back

Update July 19

There are little branches growing from the trunk. The trunk chop seems to be the best way to promote branch growth lower on the trunk.

Update July 23

It's only been 4 days after the last update but the branches have grown tremendously.

Update August 26:

It looked promising. However, things took a turn. The kapok decided to replace its trunk and not grow new branches.

Update Nov 4

I was looking at the kapoks and I saw one that had spikes:

One of the trees is growing the thorn/ spikes that are typical of some of these trees.