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Fall decandling – year two

August 5, 2011 by Jonas Dupuich

Last fall I decandled two Japanese black pines a few months later than normal – see “Fall decandling” for details. New shoots appeared soon after I decandled the trees but they stopped growing during winter. In spring the new shoots became vigorous. At this point I realized I didn’t know the plan for the second year. Fortunately, Akio Kondo was due for another visit.

Earlier this week, Kondo – a Japanese bonsai professional in town to teach and work on client trees – visited our monthly Bay Island Bonsai meeting and gave a critique. I brought both pines I’d decandled last fall. Kondo’s first question: why didn’t I decandle the trees this year? I pleaded ignorance. Turns out it’s very important to decandle the trees at the regularly appointed time the year following the fall decandling. For Northern California, that means the ideal time for me to decandle these trees was a few weeks ago in mid-July. Because the trees are strong, we decided to decandle them anyway.

Kondo says not to expect much immediately after decandling trees in fall – it’s in the second and third years after fall decandling that we can expect new buds to appear.

Akio examines the tree

Kondo sizes up the tree

Bonsai professionals who studied at Kihachi en – the bonsai nursery of the late Kihachiro Kamiya – tend to work on pines with tweezers in their right hand and scissors in the left. It’s a good system once one gets used to it.

Decandling

Kondo decandling

Fall shoots differ a bit from spring shoots. Spring shoots have a “neck” at the base, as Janet put it – a pale green area from which no needles grow. Fall shoots seem to grow directly from the branch with needles appearing all the way to the base of the shoot. Both shoots are decandled the same – the cut is made just above the base of the new growth.

Fall shoots

Fall shoots

Decandled branch

Decandled branch

Decandling complete

Decandling complete – one more tree to go

Kondo only took a few minutes to decandle the small pine. His critique of the tree included a suggestion I don’t often hear. He said to thicken the middle part of the trunk. The base is a good size for the style but the rest of the trunk is skinny. By thickening the mid-section, I can improve the tree by producing better taper.

The second tree was more dense than the first.

Before decandling

Black pine, August 2011

When Kondo saw the second pine on the turntable, he suggested that I do the cutting and he do the supervising.

Decandling the pine

Kondo and I considering a cut

For time’s sake, I used the scissors in my right hand and pulled the decandled shoots away with my left. It would be generous to say I worked at half Kondo’s speed.

Decandling the pine

Decandling

Decandling the pine

Kondo looking over my shoulder

By the end, Kondo was “helping” from the sidelines.

Decandling the pine

Still decandling

When the decandling was complete, I noticed I’d removed the bulk of the tree’s foliage.

Decandled shoots

Decandled shoots

Kondo followed up by cutting back some of the more vigorous shoots to encourage new interior growth.

Cutback

Summer cutback

I’m curious now to see if more new buds will appear later this year or early next. Either way, I’ll be sure to decandle the tree on time next summer.

✕

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

Previous Post: « Big cut – crape myrtle
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Reader Interactions

Comments

  1. Frank Kroeker says

    August 5, 2011 at 8:11 am

    How will you thicken up the mid section of your pine?

    • xwires says

      August 5, 2011 at 10:03 am

      Hi Frank – to thicken the mid section of the trunk I’ll select a branch to grow freely for 3-4 years. This will thicken the trunk below the branch while keeping the top of the trunk thin. I’ll try to select a branch growing from the back of the tree to avoid creating an unsightly scar on the front of the tree.

  2. Peter Tea says

    August 6, 2011 at 3:00 am

    I love the picture where Akio is in the background with a big smile on his face and the peace sign. LOL Great info Jonas!

  3. Frank Kroeker says

    August 6, 2011 at 6:23 am

    Thanks, are you lucky enough to have an extra branch in that area to sacrifice?

  4. xwires says

    August 6, 2011 at 9:27 am

    Hi Frank – I think I have just the branch for this. I’ll make the final determination when I wire the tree, either later this year or early next.

  5. Scott Straley says

    August 6, 2011 at 5:28 pm

    Jonas,
    Lucky for me I have a few black pines growing that are ready to move on to the decandling stage. I’m going to give it a try in October, and will let you know the results. Interesting that you follow the next year at regular time; the growth on the fall candles seems so much lower! Great follow up.

  6. bonsaijapan says

    August 7, 2011 at 9:14 pm

    It’s great to see this tree progressing. I am very interested in the fall de-candling technique and will follow its progress over the next couple of seasons closely. I would not have guessed that you would de-candle it immediately the following spring. Thanks for keeping us all updated.

    Joe.

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