Author Topic: 4 foot tall JBP...?  (Read 4436 times)

John Kirby

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Re: 4 foot tall JBP...?
« Reply #15 on: September 22, 2011, 06:11 PM »
This is a young, strong tree. The cut back and wiring up a leader will work fine. The biggest problem will most likely be in getting a good nebari, that can be worked on early as well. You will most likely need to do an additional root reduction, root arrangement and partial clean out of the potting material on 1/2 of the root ball, possibly late this winter. If you don't do it now, it will only get more complicated and dangerous later on. Boon can help you with this if you go to the club, he may recommend waiting a year, I would listen to him. I really enjoy the enthusiasm and interest that you bring to your bonsai, don't let us crusty old buggers dampen your enthusiasm or try to force you to not make the choices that many of us have made. I can tell you, yes it is easy to have too many $10 trees, but as you continue to learn and develop an eye, your enthusiasm will help you to make some nice trees.


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Re: 4 foot tall JBP...?
« Reply #16 on: September 22, 2011, 07:18 PM »
thanks John...i really apprecitate all the fee back from everyone...thanks again...


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Re: 4 foot tall JBP...?
« Reply #17 on: September 24, 2011, 02:55 AM »
lots of good advice here.

its a nursery plant.  no root work has ever been done.  i imagine a dominant tap root, and poor feet/nebari. 

1st. rule. keep it alive

second rule .......SEE FIRST RULE

my first thought with nursery trees is they're, more than likely in crappy soil, and most likely have strong tap roots.

depending on health of tree, i'd wait till spring, and tourniquet tap root and do nothing else to roots,  plant in ground or airpot with good soil.

next fall chase back all of this years growth, (doing it this fall possible but risky), to induce back budding (im sure its leggy).  once it back buds prune middle area to get sun to lower buds.  feed it well. this chasing is less aggressive than chopping to get back budding.  caution not to do more than 1 major action per year.  and do nothing to trees that are not vigorous except feed and give plenty of light.

i kept a few trees around to torcher, when i get the urge to do something, 1 jpb, and a couple of ficus.  the rest are on long term plans.


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Re: 4 foot tall JBP...?
« Reply #18 on: September 24, 2011, 05:21 AM »
Newer people might not know just how you "chase back" new growth, especially with pine. You might want to show and tell or give more detail. The tap root work is probably self explanatory though. Are you able to provide any pics?


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Re: 4 foot tall JBP...?
« Reply #19 on: September 24, 2011, 02:07 PM »

as always a what sounds simple isn't necessarily so.

think of a ruler, at the begining is the trunk at 12inches is the first fork of branch  what we are trying to do is to get forked branching closer to 0 or 1 inch.

as a rule if you cut off branch at 12 inches with no branching or needles between 0 and 12 that branch will (more than likely) die.
there are scientific explanations regarding sap flow, auxins etc etc.....   but think tree has nothing to feed why waste energy there.

think of a different branch/ruler..... trunk at 0 inches forked branches at 7inch 9 inch and good amount of branching at 12 inch, which is the most recent growth this year, and where the tree is sending much energy to grow. as a rule while whole tree is growing most energy is spent at the ends.

figuratively speaking the tree is sending 10 units of energy to feed these all these needles and forked branches. lets say that those branches at 12 inches are getting 5 units of energy.

if you cut/prune the last branch(es) at 12 inches, that branch has excess energy, given the tree is VERY healthy and vigorous and no other stresses.  this cut is often performed fall or early spring,  many will argue timing, i prefer fall.    this excess energy will often cause the tree to "bud back"  form buds where previously there wasn't any.  we are hoping between the 0 and seven inch mark.  this process is also known as "chasing back"

again this is a over simplified explanation, of  the science and technique.


the latter is my tree what it doesn't show is i pruned ALL of previous years growth in fall. with exception of low branches here.