Will it be a Japanese maple New cultivar?

[Sixty’s]

early this year I’ve made a trunk chop into a tree that I am planning on developing as a bonsai, after the chop buds started to develop and for my surprise they are way different from the original plant that I had before, although this is not unusual to happen to me as many other trees I’ve done have changed varieties after the trunk chop maybe due to a really well healed graft. The colours on the new growth seem very unusual to me, at first I thought ‘Taylor’ or some sort of ‘butterfly’ but the new growth doesn’t seem to be consistent with this cultivars.
Any ideas will be appreciated

First flush


Starting to harden


First flush


Starting to harden

 

[Sixty’s]

 

[penumbra]

There are a few reasons this can occur beyond the issue of a sprout forming below or above a graft. Usually the reasons are environmental. Most notably, 2nd growth leaves can vary quite a bit from first flush leaves. The environment is different in August than it was in March. I do a lot of maple pruning in July in my climate but seldom later. So I am looking at leaves on several of my JM cultivars that are different than those leaves born in the springtime flush.

 

[Sixty’s]

There are a few reasons this can occur beyond the issue of a sprout forming below or above a graft. Usually the reasons are environmental. Most notably, 2nd growth leaves can vary quite a bit from first flush leaves. The environment is different in August than it was in March. I do a lot of maple pruning in July in my climate but seldom later. So I am looking at leaves on several of my JM cultivars that are different than those leaves born in the springtime flush.

I seen that in some of my maples also, this tree was a mikawa yatsubusa and the new growth is more of a variegated.

 

[Sixty’s]

Some more pics as the tree grows.

 

[Sixty’s]

 

[Paradox]

This isnt how new cultivars happen.
Its probably below the graft that you chopped
or as penumbra said, second flush that is just different

Those leaves are shaped exactly the same, it just an odd color

 

[Sixty’s]

This isnt how new cultivars happen.
Its probably below the graft that you chopped
or as penumbra said, second flush that is just different

Those leaves are shaped exactly the same, it just an odd color

This are the only two pictures i can find from the top of the tree.

This one was in spring




And this one in May



I would imagine it’s the rootstock that has healed fairly well. As it’s completely new leaf shape, size and colour.

 

[Glaucus]

Assuming it is a bud mutation, it is only a new cultivar if you can find a professional grower that wants to produce less of an existing cultivar, and produce your new cultivar instead. Otherwise, you can register the name and you theoretically have your own cultivar of your own plant, but there isn't really a point or a need to name it.

That said, you expect one of the branches to mutate at the growing tip. And to then change leaf type. Not for several branches to bud from the trunk, all with the same 'mutation'.
It sounds like you trunk chopped off the mutation and now get growth of the unmutated base of the trunk. Like you could expect if you trunk chop a grafted maple and you get shoots of the rootstock rather than the grafted cultivar. But I am not an expert enough to see where it was grafted. Or what the leaves of maple root stock usually look like.

 

[WIlliam_Butler_Yeets]

To be a cultivar, you'd need to show that whatever is unique to this plant can be reproduced by growing more examples form cuttings

I mean, to me it just kinda looks like the new foliage hasn't properly hardened off yet, then when it has the leaves seem to turn a generally red color

 

[Sixty’s]

Assuming it is a bud mutation, it is only a new cultivar if you can find a professional grower that wants to produce less of an existing cultivar, and produce your new cultivar instead. Otherwise, you can register the name and you theoretically have your own cultivar of your own plant, but there isn't really a point or a need to name it.

That said, you expect one of the branches to mutate at the growing tip. And to then change leaf type. Not for several branches to bud from the trunk, all with the same 'mutation'.
It sounds like you trunk chopped off the mutation and now get growth of the unmutated base of the trunk. Like you could expect if you trunk chop a grafted maple and you get shoots of the rootstock rather than the grafted cultivar. But I am not an expert enough to see where it was grafted. Or what the leaves of maple root stock usually look like.

Yeah a mutation could explain this and wondering how common that could happen as it happened to me a few times now.

 

[Sixty’s]

To be a cultivar, you'd need to show that whatever is unique to this plant can be reproduced by growing more examples form cuttings

I mean, to me it just kinda looks like the new foliage hasn't properly hardened off yet, then when it has the leaves seem to turn a generally red color

I believe the pale color is the leaf hardened as it’s a couple months now. I’m not sure it will survive as I’ve read some mutations don’t produce enough chlorophyll to support the tree.

 

[leatherback]

It is just fresh growth, the plant urgently pushing to get some energy capturing going.
Wait for next year to see how foliage turns out in spring.

It is not a mutation.

 

[Sixty’s]

It is just fresh growth, the plant urgently pushing to get some energy capturing going.
Wait for next year to see how foliage turns out in spring.

It is not a mutation.

Yes there’s lots of possibilities, next year the new growth could be totally different.

 

[Sixty’s]

Some pictures from today, to keep track on what happens

 

[Mike Corazzi]

It is just fresh growth, the plant urgently pushing to get some energy capturing going.
Wait for next year to see how foliage turns out in spring.

It is not a mutation.

I think I agree with that. Whenever I get red leaves and petioles, it's usually fresh (AND WEAK) new growth that I rub off.

 

[Ininaatigoons]

Very interesting and pleasing to the eye! I'm with people saying wait to see what happens. Hopefully it's a spring interest tree and turns green and chlorophyll strengthens it. Hoping for the best! Keep us updated.
Sometimes there are very interesting rootstock mutations as a propagated seedling comes by the thousands or 10's of thousands and no time I'd taken to study each one. Much grafting is done in the winter so leaves are not noticeable. We'll see next year.

 

[Sixty’s]

Very interesting and pleasing to the eye! I'm with people saying wait to see what happens. Hopefully it's a spring interest tree and turns green and chlorophyll strengthens it. Hoping for the best! Keep us updated.
Sometimes there are very interesting rootstock mutations as a propagated seedling comes by the thousands or 10's of thousands and no time I'd taken to study each one. Much grafting is done in the winter so leaves are not noticeable. We'll see next year.

It has developed its first green leaf. Most trees in my garden are starting to change into autumn colours. Still think it may just end up being a Taylor variegated

 

[Ininaatigoons]

Dang! Many variegated varieties especially those in oridono nishiki type responded to chops with incredible varigation. Can't call it a named cultivar if it didn't come that way though