Acer palmatum 'Trompenburg'

Discussion in 'Acer palmatum cultivars (photos)' started by Elmore, Feb 17, 2004.

  1. Elmore

    Elmore Active Member 10 Years

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    Pictured here is a small, young grafted Acer palmatum 'Trompenburg'. Grafted in 2002. The picture was made in late March 2003.
     

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  2. industrial

    industrial Active Member

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    Here's a close up of the one I just planted
     

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  3. mjh1676

    mjh1676 Active Member Maple Society 10 Years

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    Acer plamatum 'Trompenburg' (Red)

    Photos take late spring 2004 in southen Oregon. Planted in open exposure, full sun.
     

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  4. industrial

    industrial Active Member

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    Here's another close-up of my tree.
     

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  5. jhayes5032

    jhayes5032 Active Member

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    Location:
    Greensboro, NC USA
    Trompenburg in spring, summer and fall
     

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  6. Gomero

    Gomero Well-Known Member Maple Society 10 Years

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    My Trompeburg has taken about seven years to display the full characteristics of the cultivar. For several years I thought I had been sold something else. I was wondering if others had gone through the same experience. Pic taken early April.

    Gomero
     

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  7. chimera

    chimera Well-Known Member 10 Years

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    'Trompenburg' in flower.
     

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  8. mapledia

    mapledia Active Member

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    A great large-leafed cultivar. I find it's best when backlighted for full effect.
     

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  9. chimera

    chimera Well-Known Member 10 Years

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    Van Hoey Smith {1965}. Poor pic , but difficult to find a time when the seeds are still, they move with the slightest breeze. H 25' { 8m.} Pic Oct. 8/07
     

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    Last edited: Nov 6, 2007
  10. mapleman77

    mapleman77 Active Member

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    I got in a Trompenburg yesterday from Whitman Farms. It is a tall skinny 1 year graft (or should I say budded plant) that looks like a lot of fun in the future. On the main stem that's very vigorous, the leaves are completely flat (which is to be expected) but there is a small stem that shows the reflexed lobes to a degree. However, mine does not have as many lobes as the other pictures in this forum. Different plant or unreliable one-year-graft leaves? I think that they're just different owing to the youth of the tree. In any case are some pictures, taken today, August 22.

    David
     

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  11. Cirque

    Cirque Active Member

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    I also recently obtained a 'Trompenburg'. I've been watching it at a local
    hardware store since spring. They finally put all trees and other plants on sale
    so I went ahead and got it. It's in pretty good shape even though they
    don't take great care of their plants through the summer months. A local
    nursery we help keep in business has a mature version that is spectacular.

    Cirque
     

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  12. mapleman77

    mapleman77 Active Member

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    Hi Cirque,

    Your plant looks very nice (and big, too!). I think that it's good to keep certain places in business because where else would we get these trees? The wild? I think not. LOL

    In any case good luck with this tree--I think that mine and yours show great promise! I just can't wait until next spring to see if it will show the reflexed lobes--that trait will keep me wondering. I'm also getting a Green Trompenburg in soon so we'll see about that one as well...

    Regards,
    David
     
  13. nelran

    nelran Active Member

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    Also, I like to remark your green palmatum in the background. It's really beatiful Cirque.
     
  14. maf

    maf Generous Contributor Maple Society 10 Years

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    I uploaded this pic in another thread, may as well put it here too. I like to see Trompenburg leaves contrasted with other bold forms with similar size leaves.
    Trompenburg 2.jpg
     
  15. sasquatch

    sasquatch Active Member

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    May 2008, May 2009
     

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  16. Gomero

    Gomero Well-Known Member Maple Society 10 Years

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    This is the first year my 3 'Trompemburgs' have been in flower and have now developped plenty of samaras which, to my surprise, are erect above the leaves as shown as well in the picture of 2007 from Chimera. This is unlike other palmatums/amoenums/matsumurae and I have found nothing in the books on that, anybody has an opinion?

    Gomero
     
  17. maf

    maf Generous Contributor Maple Society 10 Years

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    Gomero, 'Trompenburg' is a hybrid with A. shirasawanum, hence the upright samaras.
     
  18. Gomero

    Gomero Well-Known Member Maple Society 10 Years

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    Maf,

    That's what I thought seeing those erected samaras, but how comes that all those specialist books say nothing about it. It should be called AcerxTrompemburg, a chance hybrid between acer amoenum x acer shirasawanum

    Gomero
     
  19. maf

    maf Generous Contributor Maple Society 10 Years

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    Gomero,

    I believe I have seen a reference to the hybrid status of 'Trompenburg' in one of my maple books (the usual ones, I am sure you have the same and more), but I cannot remember which one and I do not have them with me today to check. It may not have been under the description for 'Trompenburg'. Similar references can be seen online if you search well, and there is an article in an old Maple Society newsletter by, iirc, Piet de Jong which discusses this cultivar and other hybrids.

    As for the naming, you are correct in how the name should be displayed, maybe "they" will officially change it in the future. If I remember the story of Trompenburg correctly, it was discovered in a flat of palmatum seedlings and I assume was regarded as having normal palmatum parentage at first, and that is why it was named as it was. It seems that many of the newer shirasawanum cultivars are believed to be hybrids with palmatum types, and are openly described as such, but are still labelled as shirasawanum in the literature, which is equally odd. Possibly the shirasawanums are easier to market than palmatums at the present time, ;)

    I suspect that many more cultivars of "Acer palmatum" (actually usually amoenum or matsumurae) are hybrids with closely related species than is generally believed. I am thinking of the ones with especially pubescent spring leaves for example.

    Edit: Japanese Maples 4th edition mentions the parentage of 'Trompenburg' when discussing 'Yasemin' on page 277 and when discussing hybrids on page 70, but not, confusingly, in the description of 'Trompenburg' itself. Peter Gregory only goes as far as to say it is "thought" to be a cross between palmatum and shirasawanum.
     
    Last edited: May 3, 2010
  20. rwinktown

    rwinktown Active Member

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    cant wait for this butte to create a canopy over my back yard! only have to wait about ten years haha
     

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  21. rwinktown

    rwinktown Active Member

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    my little buddy out in the yard with me!
     

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  22. mapledia

    mapledia Active Member

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    My Trompenburg, while growing like mad, has experienced some strangeness after all these years. Over the past 4 years I've found that the leaves are getting smaller and sparser, even though the tree is getting ample light, water and fertilization. After chatting with a major grower, he suggested that probably the root ball was somehow unable to penetrate my soil (lots of clay in my soil), so I followed his suggestion and uprooted the plant this past winter, dug a huge hole and filled it with good soil and replanted Trompenburg in the same location. The results were astonishing, and this summer it has enormous leaves and lots of them. I like this JM.
     
  23. malcolm197

    malcolm197 Active Member

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    I recently bought one of these from a local supermarket - very cheap. I have planted it out and it has struck nicely and is growing away....

    However one stem is bolting away giving the plant a decidedly lop-sided effect. This shoot is also much redder than the remainder of the plant at the moment.

    It would be relatively easy to prune this back to retain the shape of the plant( probably at the end of autumn ), but I am concerned about the cause of this problem and what the future development of the plant is likely to be.

    Also I am in the centre of England and winter temperatures are quite low -in my previous house quite nearby I was never succesful wih Japanese Maples, but since I moved I was tempted to try again - as the tree I bought was much more reasonably priced than garden centres so if it fails it is not a financial disaster.

    I have a cold greenhouse. Would you suggest putting the plant in a large container of ericaceous compost and putting it under cover for the winter ( or 50/50 normal and ericaceous ? )

    Some websites suggest that this can be propagated from from soft tip cuttings but others say it must be grafted. Anyone any success?

    THanks in advance for any insight

    Malcolm
     
  24. maf

    maf Generous Contributor Maple Society 10 Years

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    Malcolm, the new shoot may be a result of the extra fertility available to the tree after planting out. The more red tone will likely be because the leaves are newer. Sometimes these late growth stems are very soft and do not harden off properly before winter, with resultant dieback, so keep an eye on it, remove any growth that is still soft, and check for the stem turning black over winter.

    I only live about 30 miles from Leicester and my maples tolerate similar winters to what you experience, with no ill effect usually. Sometimes it can be an advantage to overwinter in a greenhouse the first winter because these plants have often come from a protected environment, partcularly the supermarket plants that (mostly) originate from a large greenhouse operation in Holland.

    If you put the maple in a container, amend the compost with plenty of perlite and/or coarse grit and/or bark chips to improve drainage.

    As for the propagation question, usually misting chambers and other specialised techniques are required for successful production of cutting grown plants.
     
  25. Acerholic

    Acerholic Paragon of Plants Forums Moderator VCBF Cherry Scout Maple Society

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    This is my Acer palmatum 'Trompenburg' from Spring through to late Autumn. A Convexum group maple that dazzles all season long.
     

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    AlainK likes this.

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