What cultivar of Japanese maple is this?

Bottom line, give it a go. see what you can do. FWIW, here in a temperate zone, people want tropical and Mediterranean trees. Ficus, bougainvillea, olives, etc. They go to great lengths to keep them--greenhouses, expensive lighting, etc. They are not easy trees to keep (except in the summer) Overwintering tropicals inside a house doesn't do them any good and kills quite a few. It's a bit easier because those species don't require a winter dormancy, though
 
It’s easy to want the exotic tree’s that don’t grow in our environment. Caring for a tree like this will be a job in itself. Have you examined your local wild species?
I certainly have, but all of them have like damn large leaves...

Btw will shimpakus do well in my climate?
 
I certainly have, but all of them have like damn large leaves...

Btw will shimpakus do well in my climate?
Leaves can reduce significantly with some tree’s when they are grown in a container. But not all do.

What @rockm said Ficus, bougainvillea, olives, etc. tropical and Mediterranean tree’s should be much easier to manage.
 
Yup it's always best to look to species that grow in your climate
Ding ding we have a winner! I discovered the same trying to grow Japanese maples. Sure I put a few in the ground that are relatively strong, but I have no confidence for when it comes time to pot them.

Instead I shifted to growing trees like JBP, junipers, and Elms, that all thrive in my climate. Surprise surprise, they are much easier and do so much better.
 
I certainly have, but all of them have like damn large leaves...

Btw will shimpakus do well in my climate?
If I were you, I would look to Southeast Asia--Southern China, Indonesia and Vietnam in particular--to see what species they're working with. There are some spectacular tropical bonsai coming out of Vietnam. Desmodium (blue bell) is being exported a lot for bonsai use. Some are specimen level. In Indonesia, Premna, Pemphis acidula are both used extensively. Banyan ficus (ficus benghalensis) is used extensively all over the world for bonsai. It's native to the subcontinent.

https://en.wikipedia.org/wiki/Ficus_benghalensis

 
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Just potted this up. I believe this is a kotohime?
Unless the tree was labeled by the seller who knows the provenance, it's extremely hard to determine exactly what variety it is. There are over 1,000 cultivars of Japanese maple. Some are very very similar to one another. Hard to say if this one is Kotohime.
 
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Just potted this up. I believe this is a kotohime?
Unless the tree was labeled by the seller who knows the provenance, it's extremely hard to determine exactly what variety it is. There are over 1,000 cultivars of Japanese maple. Some are very very similar to one another. Hard to say if this one is Kotohime.
Agree with @rockm here, but from the look of the tree it doesn't look like a kotohime at all. Kotohime us a dwarf with very tight growth and really short internodes. Below are a few pictures of mine.

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Btw should I air layer it off from the top in order to get like a small tree. There's like 3 branches from one place so maybe 2 air layers leaving behind one for the original tree?
 
Btw should I air layer it off from the top in order to get like a small tree. There's like 3 branches from one place so maybe 2 air layers leaving behind one for the original tree?
You CAN do that if you want. However, the sphagnum moss wrapping may be too much for the trunk to support effectively at this point. If I were you, I'd just learn how to care for the tree for at least a year.
 
You CAN do that if you want. However, the sphagnum moss wrapping may be too much for the trunk to support effectively at this point. If I were you, I'd just learn how to care for the tree for at least a year.
Thanks, I thought that at first, but then I was thinking about putting it in the fridge for winter and it's too large to fit in the fridge... So thought about getting smaller plants to put in fridge.
 
I am out. I think it would be best if you go to Lalbach botanical gardens.
(Maybe contact them first, and ask when the bonsai artist is in).
The lady who manages the bonsai collection there is very knowledgeable and can possibly help you to get started.
Tell her Jelle from Germany sais hi.
 
I am out. I think it would be best if you go to Lalbach botanical gardens.
(Maybe contact them first, and ask when the bonsai artist is in).
The lady who manages the bonsai collection there is very knowledgeable and can possibly help you to get started.
Tell her Jelle from Germany sais hi.
Hmm... But I believe in lalbagh they grow only tropicals? I mean it's just 1 hour drive from my home
 
Even just repotting without cutting roots generally sets the tree back and makes it weaker.

You really don't want to do an airlayer on a weakened tree as the layering process is taxing and also make it less likely that you get a solid production of new roots at the cut site. In very simple terms, anything above the place you layer will continue being supported by everything below, but the foliage above won't contribute energy back into the roots. The tree needs to be healthy and vigorous for it to push enough energy up to support the existing foliage without being fed at all.
 
Hmm... But I believe in lalbagh they grow only tropicals? I mean it's just 1 hour drive from my home
They grow tropicals because that's what survives well in your climate. I'd take that to heart. You maple isn't a logical or capable bonsai candidate in your climate.

BTW, cutting roots is only one way you disturb the roots. Barerooting it and placing it in new soil out of season is another form of root disturbance. Roots disturbed in that manner don't function optimally (or at all) for a long while after. Misting is a pretty bad practice for any outdoor tree. It doesn't provide any benefit, as outdoor humidity is more than adequate--unless you live in a desert. It's simply not necessary and has a steep downside by keeping the tree too wet.
 
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