Author Topic: repotting JBP  (Read 4988 times)

Dirk

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repotting JBP
« on: March 19, 2012, 06:14 PM »
It will soon be time to repot my JBP from its nursery container into its first bonsai pot.
I desperatly want to get rid of (all) the organic soil that stays wet and is grown over with things i don't want to find in a bonsaipot.

My question, can i safely bare root this (in my opinion young) tree to remove all of the organic soil?

I've been reading an article that states "clean out half of the roots first and with the next repotting the other half".
The pictures with that article show a white pine (on JBP roots) that has its roots completely washed clean. (Stone lantern's Pines)

Who can tell me what is safe to do?

Thanks,
Dick
 

Yenling83

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Re: repotting JBP
« Reply #1 on: March 19, 2012, 07:29 PM »
I think bare rooting half is a good way to go with this tree.
 

nathanbs

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Re: repotting JBP
« Reply #2 on: March 19, 2012, 07:32 PM »
it looks very healthy. bare roots will be fine and somewhat normal when you do it at the right time(now). The half and half method might better apply to a very old tree with a very fine flat root pad that is now become very old and crusty and more sensitive to root pruning. remove as many of the downward underbelly roots as you feel is safe. you would be surprised how many roots can be removed from a JBP this time of year
 

MatsuBonsai

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Re: repotting JBP
« Reply #3 on: March 19, 2012, 08:07 PM »
I would not call this a "very" healthy pine.  Soil looks to be very bad.  If it were mine I would stick to half/half.  That would be safest.
 

John Kirby

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Re: repotting JBP
« Reply #4 on: March 19, 2012, 08:59 PM »
I too would stick to doing 1/2 of the tree, but would certainly cutoff the bottom 35-40% of the rootball. Plant in a coarse rapidly draining yet moisture retentive soil.

Good luck, guess you can tell who the SOBs are.

John
 

nathanbs

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Re: repotting JBP
« Reply #5 on: March 19, 2012, 10:00 PM »
I would not call this a "very" healthy pine.  Soil looks to be very bad.  If it were mine I would stick to half/half.  That would be safest.
Soil does look bad(reason for repotting) however needle color and swelling buds are both indicators of a healthy tree. I guess better be safe than sorry especially since the vote is 4 to 1. I would hate to be wrong after arguing about it. Personally i have never lost a black pine that was this health or better without having to do a half and half repot.

John are you inferring that im a son of a ***** because i personally feel that this tree can be safely bare rooted? keeping half of the rootball in this poor soil in my opinion is riskier than the complete repot. Now you will have half fast draining soil with half concrete. How much water do you think the concrete portion will receive this next year. In addition how do you repot next year without disturbing the fresh roots from last years repot?

I think its clear who the SOB is. Thats 2 for 2 now John. Keep your foul mouth to yourself.


[mod edit: consider this a warning.]
« Last Edit: March 19, 2012, 10:08 PM by bsgAdmin »
 

MatsuBonsai

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Re: repotting JBP
« Reply #6 on: March 19, 2012, 10:04 PM »
SOB = Student of Boon.

Please keep it civil.
 

bwaynef

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Re: repotting JBP
« Reply #7 on: March 19, 2012, 10:06 PM »
Wow!  That got out of hand pretty quickly.  Its safe to assume on this board, and many other American-based/-heavy internet bonsai discussion forums that SoB refers to Student of Boon.  John & John & Yenling all are.  Their votes were in keeping with each other's, ...and likely the same as their teacher's would be.

I won't speak for Kirby, but I didn't read any malice into that post.  You probably shouldn't either.
 

nathanbs

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Re: repotting JBP
« Reply #8 on: March 19, 2012, 10:08 PM »
holy moly! Can i please edit that! IM so sorry so sorry so sorry. :o
 

nathanbs

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Re: repotting JBP
« Reply #9 on: March 19, 2012, 10:09 PM »
sorry im not hip enough to know what the current meaning of SOB is. Sorry about the mix up.
« Last Edit: March 19, 2012, 10:24 PM by nathanbs »
 

John Kirby

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Re: repotting JBP
« Reply #10 on: March 19, 2012, 10:12 PM »
SOBs are Students Of Boon (Yenling, Matsu, Me).Ask em.


Self edited.
« Last Edit: March 19, 2012, 10:14 PM by John Kirby »
 

Dirk

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Re: repotting JBP
« Reply #11 on: March 20, 2012, 01:12 AM »
Thanks for your input.
I'm sorry that my simple question caused such a fight amongst you!

I'll let you you if my tree survived!!!

Dick
 

John Kirby

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Re: repotting JBP
« Reply #12 on: March 20, 2012, 07:58 AM »
Dick,
No fight, just a slight misunderstanding. Good luck, if you haven't seen Boon's repotting Black Pine Video, I will put in a plug at this time. Google Bonsai Boon, go from there.

The point we all failed to mention is that once you have the tree cleaned up during the first repotting, be sure to securely wire it in to the pot. There are several representations of this here and elsewhere on line. You want the tree to be securely attached to protect young new roots.

Post pictures as you go.

John
 

scottroxburgh

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Re: repotting JBP
« Reply #13 on: March 21, 2012, 08:38 PM »
 

mcpesq817

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Re: repotting JBP
« Reply #14 on: March 22, 2012, 01:53 PM »
I've repotted similar JBPs (in terms of size and development) before that were in really bad soil, and have always had success practically bare rooting the tree (maybe up to 85-90% of the original field soil).  I probably wouldn't do that with older developed material, but I think material like this is a bit more tolerant.

Just my opinion and experience.