2024 Shibui Field grown maples

Shibui

Imperial Masterpiece
Messages
8,965
Reaction score
18,465
Location
Yackandandah, Australia
USDA Zone
9?
Winter down here so I am working my way through the deciduous trees in the grow beds.
Here's a few pics of progress:

Growth: These tridents have put on around 2.5m of new growth over summer.
IMG_5160.JPGIMG_5159.JPG
Most of you are aware that these tridents in the grow beds are dug, root pruned and chopped EVERY winter so the tape shows where the trees measures from where they were chopped last winter to the tip of the new shoots.

Roots: Years ago I noticed that 90% of new roots grow from the cut ends of roots so I now chop trident roots very hard each winter. They respond with lots of new roots to build nebari and the sort of growth in the pics above.
IMG_5121.JPG
The roots of this trident were chopped close to the metal plate last winter. The lighter coloured roots are the new ones that grew over summer. Those new roots will also be chopped back just past the previous cut to encourage even more new roots.


A couple of 3-4 year old tridents dug recently
IMG_5113.JPGIMG_5139.JPGIMG_5266.JPG
Underside of the root ball of the last above showing the flat area where it was grown over a piece of sheet metal.
IMG_5267.JPG

Results of some trials:
fused trunk trident.
IMG_5262.JPG
I only picked that one as fused trunk when I noticed the small section at the top but if you look closer at the trunk you may be able to pick up traces of the original trunks.
IMG_5263.JPG
That trial was seedlings braided together so they held each other tight.
I'm still not convinced that trunk fusion is a viable technique. So many problems and failures. Much easier and just as quick to just grow a single trunk to size.
 

Attachments

  • IMG_5274.JPG
    IMG_5274.JPG
    310.9 KB · Views: 166
Thanks for sharing. Do you change soil for field growing or whatever is in ground in your grow bed you use? And assume you dig them out early spring for this work as buds swelling? I know other side of world so different calendar for winter summer
 
Great job. I would love to see how the fused trunk maple develops in the coming season. Looks like you have plenty of options for selecting a branch leader.
 
It’s nice to see 3 years development. I put some seedlings in the ground (in a root pouch) and I’m glad to see such growth is possible, as mine didn’t do a whole lot this season so far.
Thanks for sharing.
 
Do you change soil for field growing or whatever is in ground in your grow bed you use? And assume you dig them out early spring for this work as buds swelling? I know other side of world so different calendar for winter summer
Field grown means grown in the ground. That means the natural soil here though it has been 'improved' with compost and fertiliser. I just dig the soil, add some compost and plant the trees. I guess I am lucky the soil is really good here so trees grow well without too much improvement.
When they go to pots I shake off as much soil as practical and scrape out any stubborn lumps so they go into potting soil in the pots with little garden soil.

I have way too many trees to dig 'as the buds swell'. I start digging (and also repotting bonsai) from mid winter in order to get through them before the shoots start to open in spring. Still 100% survival for tridents, crab apples, hawthorn, plums, etc that are root pruned any time from leaf fall through to leaves opening.
Need to note that my 'winter' does not equate to a North American 'Winter'. Soil never freezes and night temps just a few degrees below freezing here.

wow you really have great growing conditions...
I feel that summer growth has slowed a little over the past few years. For the first few years I used this patch the tridents would end up well over head high each summer. The soil looks better each year but need to check soil pH and nutrient levels to see if I have depleted what I started out with.
 
Something for the stump lovers today.
I noticed some trident maples showing through the tangle of weedy exotic species along the side of a road last summer.
Donned a fluoro jacket and went out to 'save' them yesterday.
Turned out to be the 3 bears of tridents - A great big daddy, a middle sized mummy and a smaller baby.
This is the middle sized tree. I used the recipro saw (sawzall) to cut the roots.
IMG_5342.JPG
Today I reduced the trunk and roots to promote more lateral roots for future bonsai.
Nice bend but not a lot of taper where it counts. Some smaller lateral roots and 4 thicker roots.
IMG_5343.JPG
Not much point having a huge vertical root so it was chopped just below the lateral roots.
IMG_5345.JPG

Lateral roots reduced to a little longer than trunk diameter.
IMG_5346.JPG
I've transplanted some reasonably large tridents in the past but this one is probably twice as thick as previous so it will be interesting to see how it recovers. For now I'll just heel it into the soil then plant it in the grow bed to see what happens next summer.

I also got the baby bear trident - trunk a little more than 1" thick and almost no trunk taper.
The papa trident was pretty solid in the ground so it is still there. It will probably get chopped next time the road crew do maintenance.
 
Back
Top Bottom