Author Topic: A general juniper question  (Read 4936 times)

Larry Gockley

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A general juniper question
« on: August 21, 2012, 01:24 PM »
About a month ago, we got a 2 1/2" rain event, and some time after, I noticed quite a bit of juvenile growth on most of my junipers. This may come under the title of " a dumb question", but does juvenile growth eventually tighten up as mature growth, or must it be pinched off? Thanks, Larry
 

MatsuBonsai

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Re: A general juniper question
« Reply #1 on: August 21, 2012, 01:49 PM »
Juvenile foliage is a sign of stress. Pinching is a form of stress. Don't.

It will take 2 years to grow out.
 

cbobgo

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Re: A general juniper question
« Reply #2 on: August 21, 2012, 02:16 PM »
if the growth is in a place you don't need/want growth, then remove it completely, otherwise, as mentioned, you will have to let it grow out.

- bob
 

Larry Gockley

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Re: A general juniper question
« Reply #3 on: August 21, 2012, 04:21 PM »
Thanks guys. Wow, two years, next time I'll bring them in out of the rain, maybe. :-\
 

MatsuBonsai

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Re: A general juniper question
« Reply #4 on: August 21, 2012, 04:29 PM »
I would be surprised if rain alone were the cause. Perhaps poor draining soil?  Too much fertilizer?  Trimming?  Pinching?
 

Larry Gockley

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Re: A general juniper question
« Reply #5 on: August 22, 2012, 10:52 AM »
Well John, you got me wondering now what caused it. No fertilizer is added in the summer time, no trimming, and never pinching. The ones repotted last winter are in very well draining soil, 2/3 akadama, and some are still in nursery soil / pots, that will be repotted next winter. The only change in statis - quo was the rain. I will take one of them along to a conifer class this fall with the Smiths at Dallas, to see if it a local occurrence. Thanks.
 

GastroGnome

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Re: A general juniper question
« Reply #6 on: September 11, 2012, 01:55 PM »
A close friend of mine who studied with Kunio Kobayashi told me that he said heavy watering after even medium level work can cause juvenile foliage to pop.  So, I'd say the rain was definitely the cause.
Ryan
 

Owen Reich

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Re: A general juniper question
« Reply #7 on: September 13, 2012, 09:01 AM »
I have noticed the same thing happen here at Kouka-en on a few or our medium sized shimpaku.  Recently actually.  Rain storms off and on for three weeks and two recently styled trees have shown the start of juvenile foliage.  Hmmm.
 

MatsuBonsai

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Re: A general juniper question
« Reply #8 on: September 13, 2012, 09:43 AM »
Right, but Larry reports no recent styling, nothing other than rain. Which, is the reason for my surprise.
 

nathanbs

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Re: A general juniper question
« Reply #9 on: September 13, 2012, 01:01 PM »
Does it make any sense that the tree is trying to generate as much leaf surface area that it can as quickly as it can to grow during this rain rich season and/or is it a defense mechanism to prevent root rot as the more leaves the more water uptake the plant will have thus drying the soil out quicker?? Just a wild idea
 

John Kirby

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Re: A general juniper question
« Reply #10 on: September 13, 2012, 01:44 PM »
Who knows, a stressor piled on a stressor piled on a stressor and you end up with a stress response. Guess it shows you need to balance the stress in your trees' lives.
 

Chrisl

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Re: A general juniper question
« Reply #11 on: September 14, 2012, 11:40 AM »
...guess it shows you need to balance the stress in your trees' lives.

Now there's a statement that can be used for all of us ;)
 

Owen Reich

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Re: A general juniper question
« Reply #12 on: September 14, 2012, 06:16 PM »
My comment was off topic a little.  Just excessive rain should do nothing.  My comment was based on observations of recently styled trees as we wire shimpaku all the time and almost never get a juvenile foliage push. 
 

Larry Gockley

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Re: A general juniper question
« Reply #13 on: October 03, 2012, 12:56 PM »
Just noticed the recent posts. OK, the general consensus seems to be that stress was a factor. I quess that 20 or so days of temps over 100, could be considered stress, then followed by cooler temps and rain, and it was happy again. Kind of like a sailor on 3 day weekend. ::)