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Decandling a red pine forest bonsai

July 1, 2016 by Jonas Dupuich

Although I’ve only posted a handful of explicit bonsai experiments, I tend to think of all bonsai work as experimental.

We know what happens when we cut – some amount of foliage is removed from the tree we’re working on. What we don’t know is how exactly the tree will respond. We may have a general idea – after decandling summer shoots will appear, for example – but the specifics are less concrete.

When I remove spring growth from a shoot, I don’t know how many buds will form or where exactly they’ll appear. When I decandle weak, interior shoots, I don’t know if any buds will form at all.

While I can’t track the results of every last cut on the tree, I can track things like timing and decandling technique used.

Instead of taking notes, I try to take pictures whenever possible. Occasionally I’ll check photos from previous years to see when I decandled a tree to find out how it came out. This can offer clues for what to try next.

My red pine forest is essentially a big experiment to see what one can do with trees that are less well-suited to be developed on their own. It’s also a recurring subject for experiments relating to decandling.

A few years ago, I decandled some of the trees more than a month later than usual. This really weakened the trees that were decandled last. It took two years for these trees to recover.

Now that the vigor is again well-balanced, I can get back to the straightforward work of removing the spring growth to encourage more refined summer growth. Here’s what the work looked like step-by-step.

Red pine forest before decandling – June 2016

After decandling the center tree

I worked with scissors in my right hand and tweezers in my left. I find it’s easier to reach the interior shoots with tools than it is to reach them with my hands.

Working with scissors and tweezers

Starting at the top and working my way down, I removed all but the smallest new shoots.

Two sections complete

The right side is almost done

Front tree on the left complete

Most of the left side complete

Decandling complete

After I finished decandling, I removed a small number of strong shoots and thinned out some of the branches on the left. The goal is to even out the density on the left and right-hand sides of the tree and to vary the tree heights more – a task that will require both time and wiring.

For today, however, the work is complete. I’ll thin a few needles before the summer shoots appear and start fertilizing again in a few weeks. In a few months, I’ll find out how this year’s decandling experiment turns out.

The scene of the decandling

✕

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Filed Under: Bonsai Development Tagged With: Decandling, Red Pine

Previous Post: « Pulling needles on black pine
Next Post: Cutback on Korean hornbeam »

Reader Interactions

Comments

  1. Bluebird4UDaily says

    July 1, 2016 at 4:08 am

    Truly a beautiful process with outstanding results.. lovely pictures to tell the story as well.. Have a wonderful day…

    Take care, Laura ~

  2. Daniel Dolan says

    July 1, 2016 at 5:12 am

    Jonas…..really, a very unique Bonsai grouping. You are always very precise in your descriptions of techniques, as well as the design intentions with regard to your Bonsai.

    I have felt very confident, that is until this morning, that I can distinguish a Pine Bud, Candle and Shoot. Why do you describe this entire process as Decandling….when you are removing the Shoots. The caption beneath the first photo reads: “Red pine forest before decandling – June 2016”. There does not appear to be a single Candle on the group.

    Please advise when convenient.

    Regards,

    D/D Chicago

  3. Jonas Dupuich says

    July 1, 2016 at 11:30 am

    Good question – the short answer is convention. By convention, the technique of removing spring growth is referred to as decandling.

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