Author Topic: Acer palmatum 'Koto hime'  (Read 14281 times)

bwaynef

  • Administrator
  • Hero Forum Member
  • *****
  • Posts: 1785
  • Thanked: 33 times
  • USDA Zone: 8a
Acer palmatum 'Koto hime'
« on: January 28, 2012, 03:53 PM »
Would anyone care to tell me what all they know about these trees?  I'm particularly interested in their response to pruning ...and any tips on repotting.

A friend of mine has a really nice one that's in need of some TLC sooner rather than later.

Thanks!
 

jwatson

  • Poster
  • *
  • Posts: 3
Re: Acer palmatum 'Koto hime'
« Reply #1 on: January 29, 2012, 08:57 AM »
Very tiny leaves, very easy to get sun scorched.  I have a tiny pre-bonsai koto hime, and here on the coast the winter has been so mild it's never even lost its leaves!  I've been watering and fertilizing as with all JM. 
 

Don Blackmond

  • Hero Forum Member
  • *****
  • Posts: 504
Re: Acer palmatum 'Koto hime'
« Reply #2 on: January 29, 2012, 04:56 PM »
Bill V. has some really nice info on them.  Perhaps he will visit and chime in.
 

bwaynef

  • Administrator
  • Hero Forum Member
  • *****
  • Posts: 1785
  • Thanked: 33 times
  • USDA Zone: 8a
Re: Acer palmatum 'Koto hime'
« Reply #3 on: January 31, 2012, 02:03 PM »
Here's hoping...
 

William N. Valavanis

  • Full Forum Member
  • ***
  • Posts: 146
Re: Acer palmatum 'Koto hime'
« Reply #4 on: January 31, 2012, 08:57 PM »
I've been propagating and growing Koto Hime Japanese maple since I introduced it to the American bonsai community in 1970. This is a very easy to grow and root cultivar of Japanese maple. In fact, it roots easier and quicker than common chrysanthemums. Semi softwood cuttings root quickly when taken in late spring. Large thick trunk cuttings will also root, but grow more slowly than vigorous smaller cuttings. Airlayers root best in spring as the new vegetative buds begin to grow.

Koto Hime Japanese maple has a strong vertical growth habit. Horizontal branches must be wired into place, but fortunately, they have a good memory and will quickly hold their new shapes. Be sure to check on wire as maples, like many deciduous species tend t grow rapidly in spring and wire may cut into the bark in only a couple of weeks. Continued pinching is necessary to develop fine twigs like the two bonsai below exhibit. I have never defoliated this cultivar, no need to as the foliage is quite tiny.

As far as repotting goes, there is nothing particularly special about Koto Hime Japanese maple. I have learned it's best to transplant AS the new leaves are opening, or even when the leaves are open and small. Like other established bonsai, they can be transplanted when in full leaf if you are careful and provide sufficient aftercare. There is no problem in drastically root pruning in spring. There is nothing special about the soil mixture, but a finer textured soil is preferred when fine twigs are being developed.

There is a variant of Koto Hime Japanese maple, Goshiki Koto Hime, which is supposed to have multi colored spring new growth. I have found this cultivar is not as vigorous as the common Koto Hime Japanese maple.

The first photo is my oldest Koto Hime Japanese maple which was used as a mother stock plant. Over 10,000 cuttings from this specimen were rooted and distributed throughout the United States. It has been completely container grown since it was rooted in 1970. It has never been in the ground.

The second photo was actually an air layer from the large plant which was allowed to grow to three feet tall with three trunks. The right trunk was air layered and was trained into the shohin bonsai shown here. It was the logo for a recent Shohin Bonsai Symposium.

Koto Hime Japanese maple is a delight to grow and train for bonsai.

 

bwaynef

  • Administrator
  • Hero Forum Member
  • *****
  • Posts: 1785
  • Thanked: 33 times
  • USDA Zone: 8a
Re: Acer palmatum 'Koto hime'
« Reply #5 on: January 31, 2012, 09:16 PM »
Wow!  That's the kind of information I was hoping for.  I'm encouraged to hear that 'Koto hime' has a strong vertical growth habit.  I'm wondering how it would respond to a rather drastic pruning.

Thanks
 

William N. Valavanis

  • Full Forum Member
  • ***
  • Posts: 146
Re: Acer palmatum 'Koto hime'
« Reply #6 on: January 31, 2012, 09:18 PM »
Koto Hime Japanese maple responds well to drastic pruning in early spring. Also, I forgot to mention that it is winter hardy in the ground in Upstate New York. When container grown, for bonsai, it must get some winter protection, like Trident maples in our climate.

Bill
 

John Kirby

  • Hero Forum Member
  • *****
  • Posts: 2216
  • Thanked: 16 times
  • I really need an opposable thumb...
Re: Acer palmatum 'Koto hime'
« Reply #7 on: February 01, 2012, 06:38 PM »
Nice Bill, you have some great ones.
 

exitsanity

  • Legit New User
  • *
  • Posts: 9
Re: Acer palmatum 'Koto hime'
« Reply #8 on: February 21, 2013, 10:57 AM »
Awesome trees.

Does anyone know a good online supplier for prebonsai koto hime material? All I'm finding for a parent tree is the Goshiki variant.

I'm in New England. Thank you for the excellent information!
 

William N. Valavanis

  • Full Forum Member
  • ***
  • Posts: 146
Re: Acer palmatum 'Koto hime'
« Reply #9 on: February 21, 2013, 11:10 AM »
I have excellent pre-bonsai Koto Hime plants from cuttings, not grafts available through my web site on order or my catalog which can also be download at the site below.

Good luck training your Koto Hime, great cultivar to work with.

Bill

http://www.internationalbonsai.com/page/1442817
 

Yenling83

  • Sr. Forum Member
  • ****
  • Posts: 321
Re: Acer palmatum 'Koto hime'
« Reply #10 on: February 21, 2013, 11:37 AM »
Bill-that large Koto Hime is so beautiful!!! I could look at it all day. 
 

William N. Valavanis

  • Full Forum Member
  • ***
  • Posts: 146
Re: Acer palmatum 'Koto hime'
« Reply #11 on: February 21, 2013, 12:47 PM »
Glad you like my large Koto Hime Japanese maple bonsai. When it was initially styled three air layers were made and are now stunning bonsai.

There are 12 pages on the history and care of Koto Hime Japanese maple as well as how this bonsai and its three air layers were trained in my forthcoming new book: Classical Bonsai Art: A Half Century of Bonsai Study– The Creations & Passion of William N. Valavanis. ]Although the book will be released in June at the International Bonsai Colloquium, there is a special pre-publication sale on now. The 256 page book has 675 formal portrait as well as developmental photos on 100 classic bonsai.

Below is an order form and also a link where you can easily order it on line.

Bill

http://www.internationalbonsai.com/page/1442819
« Last Edit: February 21, 2013, 12:49 PM by William N. Valavanis »
 

LarryAldrich

  • Jr. Forum Member
  • **
  • Posts: 85
Re: Acer palmatum 'Koto hime'
« Reply #12 on: February 25, 2014, 02:06 AM »
I am interested in what you consider drastic pruning.  I have a Goshiki Koto Hime that has some really long upper growth that it need to remove. It's buds are just starting to swell and open. The tree is healthy, can I remove 50% of that growth or should I do it more slowly over a few seasons?

Thanks
 

William N. Valavanis

  • Full Forum Member
  • ***
  • Posts: 146
Re: Acer palmatum 'Koto hime'
« Reply #13 on: February 25, 2014, 07:54 AM »
Larry,

Should be no problem removing even over 50% of the growth. Try sticking the pieces removed, they may root.

Good luck,

Bill
 

Stefan.A

  • Poster
  • *
  • Posts: 4
Re: Acer palmatum 'Koto hime'
« Reply #14 on: February 25, 2014, 09:12 AM »
Could you elaborate on the pruning part? I always though maples tend to bleed alot around this time.
« Last Edit: February 25, 2014, 09:20 AM by Stefan.A »