Author Topic: Approach grafting for JBP nebari improvement  (Read 4243 times)

pwk5017

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Approach grafting for JBP nebari improvement
« on: July 12, 2011, 02:28 AM »
I have heard people mention approach grafting seedlings onto older JBP as a means of nebari improvement.  Does anyone know of a documented source print/online that details how to do this?  Is it as simple as making a groove in the large tree and fitting the seedling into the groove, or do I have to cut into the seedling as well and line the cut part of the seedling with the groove in the mature tree?   Thanks.

Patrick
 

MatsuBonsai

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Re: Approach grafting for JBP nebari improvement
« Reply #1 on: July 12, 2011, 09:05 AM »
I've seen an interesting technique documented in a few different print publications.  One of them was in Kawabe's book, which is Japanese language only at this point.  I think I saw the same technique in another English language book/magazine recently.  I'll check tonight.

The basic technique was to take a seedling with a low branch, cut the apex off and form into a flat point for grafting, leaving the low branch(es) to keep the seedling growing.  Then cut the trunk of the main tree with a sharp chisel to insert the flattened point.
 

MatsuBonsai

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Re: Approach grafting for JBP nebari improvement
« Reply #2 on: July 12, 2011, 08:06 PM »
Looks like I misremembered, the article in question was on juniper, though I'm not sure it wouldn't work for JBP as well.  If you're willing to experiment, let us know how it works.  :)

Otherwise, I would suggest the same technique used here, using seedlings instead of the connected branch.

Where are you located?
 

pwk5017

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Re: Approach grafting for JBP nebari improvement
« Reply #3 on: July 13, 2011, 12:34 AM »
Pittsburgh, PA.  You and I are in similar zones, if not the same exact.  I am curious how the trees would fuse.  Could I perform a thread graft with 2 year old seedlings?  Just feed the roots through the hole instead of the norm of pushing a maple(other deciduous stock) trunk first through the hole.  Would the seedling and stock eventually fuse or no?
 

pwk5017

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Re: Approach grafting for JBP nebari improvement
« Reply #4 on: July 13, 2011, 12:38 AM »
Ok, I just read through your thread.  I assume it is critical to expose the cambium on both trees to ensure a union?
 

MatsuBonsai

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Re: Approach grafting for JBP nebari improvement
« Reply #5 on: July 13, 2011, 01:20 PM »
Yes, and be sure the cut is deep enough into the main tree so that the scion/seedling makes a good bond and doesn't force itself out.

Also, you might consider adding your location to your profile.
 

Dirk

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Re: Approach grafting for JBP nebari improvement
« Reply #6 on: March 31, 2013, 05:52 PM »
Is there a follow up on this thread yet?
Would it be possible  to completely renew the rootsystem of a JBP by approach grafting seedlings?
Will the seedlings thicken enough to make believable roots?
 

pwk5017

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Re: Approach grafting for JBP nebari improvement
« Reply #7 on: April 10, 2013, 11:04 AM »
Funny that you should ask, dirk.  I have spent the last two weeks repotting all my JBP stock.  I have been growing from seed for 5 years so I have many trees of various ages.  My oldest seedlings were not seedling cuttings, so about half have pretty sub-par nebari. Some I was lucky enough to get nice root development, but the others I knew would be poor material without some serious intervention.  I used a couple 2 year old seedlings to approach graft on the 5 yr old pine bases.  We will see what happens in a couple months when I check in on the grafts.  If they do take, I might just let the grafts run wild as sacrifice branches to build very large bases.  This is my first attempt at grafting a pine, but the process seems pretty simple and fool proof.  I made a pretty deep notch on the parent plant. The seedling fit in semi snug. I scraped the side of the seedling that was going to fit into the cleft, and I stapled the seedling in place. I  then covered the whole thing in wound sealant to keep the graft moist. I am hoping for the best, and I will keep you posted!
 

Dirk

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Re: Approach grafting for JBP nebari improvement
« Reply #8 on: April 10, 2013, 01:40 PM »
Do you have some pictures of the process?
I ask because this black pine will be on my bench soon and I don't now for sure if the nebari is good.
I'm also growing JBP from seed and plan to grow some seedlings for improving the nebari.
So I ques I better do not make cuttings of a number of seedlings to make them grow faster and make straight roots.
 

bwaynef

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Re: Approach grafting for JBP nebari improvement
« Reply #9 on: July 08, 2013, 09:32 AM »
So, how'd it go?  Are you able to discern results at the mid-point of the season?
 

pwk5017

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Re: Approach grafting for JBP nebari improvement
« Reply #10 on: July 10, 2013, 07:03 PM »
Funny you should ask, I was really tempted to peel the cut paste off and see what was going on about 3 days ago! I showed some restraint and figured I could risk the graft taking if I mess about with it. The seedling is growing strongly, so I am assuming the graft will work as long as it didnt push itself out of the notch.