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How vigorous are your pines?

June 7, 2016 by Jonas Dupuich

We all know the basic signs that are our pines are healthy – dark green foliage and long spring shoots.

Green growth on a 12 year-old pine

Vigorous spring shoot

There’s another clear sign that pines are healthy that may not be as obvious. At first glance, the pine below looks like you would expect a healthy pine to look in early spring.

Healthy pine

Looking closer, the emerging shoots at the ends of the branches are summer shoots – new growth that appears at the end of spring shoots that have fully elongated.

Summer shoots

When pines are strong, they can push a second flush of growth without decandling. If you see these shoots when your trees are in development, great – the pines are growing in top gear. If, however, you see this a lot on more refined trees, less water and fertilizer might be in order to slow the trees down.

The trees below are early in their refinement. My main goal at this stage is to slow them down to the point where they can produce refined shoots that I can use to build the basic branch structure.

How will I slow the trees down? I’ll feed less and decandle the trees later. Seeing how the trees look in fall after decandling will inform next year’s water and fertilizer regimen.

12 year-old pine

Three summer shoots emerge from the end of a spring shoot

Another 12 year-old black pine

Needles emerging from summer shoots

Space Still Available for June 11 Black Pine Basics Class

This Saturday I’ll be teaching a class on spring work for Japanese black and red pines that focuses on decandling. Not sure if your trees are ready to be decandled or uncertain about how to proceed? Come Saturday for a lecture, demo and hands-on pine work.

✕

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

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Reader Interactions

Comments

  1. Ray says

    June 7, 2016 at 7:54 am

    Looks good Jonas.

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