Harunobu
Chumono
Are you keeping it inside? It should be fine outside, if you have space/a garden.
You say it grew well up top. But in the pictures, I don't see any long news shoots. So these were pruned back already?
Hmm, you didn't get that many new buds? None on that larger branch on the left side that was pruned?
Those new shoots at the base are kind of useless.
I think I would wait to see what it does come spring. You pruned a lot, but it didn't respond with new growth very strongly, it seems.
I kinda want to say to leave it mostly alone for 2021. Maybe prune back the long shoots on the two sidetrunks in May 2021. And then in late winter 2022 try again and maybe remove both two sidetrunks. And make it a single trunk.
If so, make sure the central trunk can grow a lot in 2021. But where you have the Y shape in the central trunk now, make sure one is strong and the other is weak.
I kind of feel that with minimum pruning in 2021, since you have such bald branches and you have new buds at the very base now, there is a good chance that late summer 2021, it will bud back on those bald branches. Cut back to long stubs so you have a lot of dormant buds in those stubs you leave. This in contrast to cutting flush. And if it does, that allows you to prune back in 2022 to these new shoots.
In that case, by the end of 2022, you have a single trunk with a nice taper, and some juvenile shoots on them to work with. And you can grow some foliage pads in 2023 and 2024.
If you prune it back hard in late winter 2021, for example removing both side-trunks, it may not respond as you want because right now it seems a bit weak. So that is not ideal. You will end up with something that is pruned hard several times, but each time doesn't respond to the pruning.
Alternatively, if not pruned at all, it may just grow new long shoots from the apical tips, and not backbud without pruning. That doesn't get you to where you want. But at least in that case, you have a tree that is growing well. Just not in the right way.
If it neither backbuds on old unshaded wood, and it also doesn't backbud strongly when pruned back. Then maybe one has to try to prune hard aka chop it in late winter 2022. And then not touch it at all in 2021 in preparation for that.
You say it grew well up top. But in the pictures, I don't see any long news shoots. So these were pruned back already?
Hmm, you didn't get that many new buds? None on that larger branch on the left side that was pruned?
Those new shoots at the base are kind of useless.
I think I would wait to see what it does come spring. You pruned a lot, but it didn't respond with new growth very strongly, it seems.
I kinda want to say to leave it mostly alone for 2021. Maybe prune back the long shoots on the two sidetrunks in May 2021. And then in late winter 2022 try again and maybe remove both two sidetrunks. And make it a single trunk.
If so, make sure the central trunk can grow a lot in 2021. But where you have the Y shape in the central trunk now, make sure one is strong and the other is weak.
I kind of feel that with minimum pruning in 2021, since you have such bald branches and you have new buds at the very base now, there is a good chance that late summer 2021, it will bud back on those bald branches. Cut back to long stubs so you have a lot of dormant buds in those stubs you leave. This in contrast to cutting flush. And if it does, that allows you to prune back in 2022 to these new shoots.
In that case, by the end of 2022, you have a single trunk with a nice taper, and some juvenile shoots on them to work with. And you can grow some foliage pads in 2023 and 2024.
If you prune it back hard in late winter 2021, for example removing both side-trunks, it may not respond as you want because right now it seems a bit weak. So that is not ideal. You will end up with something that is pruned hard several times, but each time doesn't respond to the pruning.
Alternatively, if not pruned at all, it may just grow new long shoots from the apical tips, and not backbud without pruning. That doesn't get you to where you want. But at least in that case, you have a tree that is growing well. Just not in the right way.
If it neither backbuds on old unshaded wood, and it also doesn't backbud strongly when pruned back. Then maybe one has to try to prune hard aka chop it in late winter 2022. And then not touch it at all in 2021 in preparation for that.
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