Cleaning up a Japanese beech forest

3 months ago Nebby 0

Source: Bonsai Tonight Blog.

Two years ago I found myself with a few dozen young Japanese beech. They were mostly the same size and age, and they weren’t very far in their development as bonsai. They were perfect, in other words, for a group planting.

Young Japanese beech

Because the trees were so similar to each other, I started looking for larger specimens. Over the next year, I found two that could provide some variety to the mix. Last November, I bare-rooted all of the trees and began assembling the forest.

Combing out the roots

Bare-rooted trees ready to go

Before securing the trees in the pot I did a dry run by setting the trees into place. I was happy with the arrangement and got to work using wires and chopsticks to make sure the trees didn’t move around after planting.

After securing the first few trees, it became clear that they weren’t ending up exactly where I’d planned them to be. The key trees, however, are about where I intended. Here’s what they looked like after planting.

After planting – November 2016

The trees grew well this year – enough so that I cut back long shoots in summer and reduced the size of the largest leaves (see “Leaf pruning – stewartia” for details about the technique).

By fall, however, the leaves began to turn brown and fall off. Japanese beech grow at elevation in their natural environment and can handle very cold winters. It’s barely cold enough in the Bay Area for the leaves to turn brown, let alone fall off (see “Beech – on top of the mountain” for photos of mountain-top beech growing in Japan). To give the trees a break and to ensure that the interior buds receive adequate light in winter, all of the leaves were removed.

Japanese beech – one year after planting

After removing the foliage

Seeing the trees without leaves made it easy to see which branches needed attention. I shortened long, straight shoots and branches that grew towards the center of the composition. Over time I’ll further reduce the branches, but I left extras for now to help the trees gain strength as they continue to root into the pot.

After cutback

I then wired a few branches that were useful but growing at awkward angles.

After wiring

Now begins the long process of refining the design by making similar adjustments every summer and fall.

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