Author Topic: Wintering Princess Persimmon in zone 6b  (Read 20488 times)

Judy

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Re: Wintering Princess Persimmon in zone 6b
« Reply #45 on: May 16, 2012, 05:50 PM »
Pictures please, I NEED to see what a stud tree looks like.... ;D
 

tanlu

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Re: Wintering Princess Persimmon in zone 6b
« Reply #46 on: May 16, 2012, 11:16 PM »
Would've loved to, but unfortunately I'm pretty sure last month's frosts in the northeast have killed both of them.

T
 

rockm

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Re: Wintering Princess Persimmon in zone 6b
« Reply #47 on: May 17, 2012, 02:25 PM »
Persimmon Secretariat...
 

Judy

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Re: Wintering Princess Persimmon in zone 6b
« Reply #48 on: May 18, 2012, 08:27 AM »
Looks almost beech-like.  Sure looks like it's very healthy, going out to pasture indeed...
 

Owen Reich

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Re: Wintering Princess Persimmon in zone 6b
« Reply #49 on: June 02, 2012, 02:07 AM »
Rockm, if you don't mind, I'd love a rooted cutting of the "stud" tree or perhaps I can get one from another source.  I will be back in America for a year or so in December and will be in your area at some point.  Happy to buy or get you something for the trouble.

Thanks
 

yamins

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Re: Wintering Princess Persimmon in zone 6b
« Reply #50 on: August 08, 2012, 03:26 PM »
Hi all --

I've now been growing princess persimmons in zone 6b/7a for a few years, and I've made an observation about pruning that maybe could be useful for others (tanlu, for instance).   

It seems fine to prune -- even quite heavily -- before ANY growth is pushed at all (e.g. in our zone, February) or after the tree's made it's first push and the foliage hardens off (e.g. any time after mid June in my zone).   In these cases, the branches seem to pop lots of little buds after pruning and remain healthy and vigorous.

However, I've noticed that if you do any pruning (even what I'd think would be considered fairly light) on a branch at the beginning of the growing season, it's not uncommon for the whole branch to lose vigor and die back.   In my zone, this "danger time" is between mid-march and late May or early June.   

If pruning is done during this "danger time" over the whole tree, this then seems to severely weaken the whole tree and cascade into other health issues.    In fact, one reason that I suspect that the causation is "pruning at wrong time --> loss of vigor --> other health issues" as opposed to the obvious confound ("other health issues --> loss of vigor after pruning at wrong time"), is precisely that on trees that I've trimmed a few branches of in March or April, those particular branches weaken and eventually die, but the rest of the tree can remain extremely strong.   Whereas the two trees that I did "overall" pruning to during the "danger period" -- well, one died and the other came very close. 

I've now done this enough times on enough trees that I think it's plausible that my observation might actually be "true".   Of course, it's still anecdotal, but perhaps helpful.
 

Owen Reich

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Re: Wintering Princess Persimmon in zone 6b
« Reply #51 on: August 16, 2012, 07:03 AM »
I will ask about this.  I've noticed something similar.
 

rockm

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Re: Wintering Princess Persimmon in zone 6b
« Reply #52 on: August 16, 2012, 01:02 PM »
Owen,

Sorry I didn't see your message here. I haven't taken cuttings from the tree, but Julian Adams has plenty of them. He's in Lynchburg, VA. about four hours south of D.C. I'm sure he would be willing to send you some saplings or latest rooted cuttings.

http://www.adamsbonsai.com/index.html

Of course if you can't make it down there or Julian is out of them, let me know. Mine has a couple of small root suckers that Julian told me to leave alone for possible future cuttings. They're still attached to the tree and without roots though. Might be able to separate them for you in the spring?...
 

Owen Reich

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Re: Wintering Princess Persimmon in zone 6b
« Reply #53 on: August 16, 2012, 06:36 PM »
Thanks.  I'd propagate them for "back-ups".  I'm sure I can send you something cool in trade.  May actually be up there next Spring.
 

yamins

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Re: Wintering Princess Persimmon in zone 6b
« Reply #54 on: August 17, 2012, 06:02 PM »
Owen, thanks ... any further information you can find would be wonderful.   

On a related subject, does anyone know whether these persimmons airlayer well?  Or are cuttings a better way to propagate true to type?   (I also have the hope that a few of my seeds will germinate.  I  tried the first year with about 12 seeds, and none germinated. I'll probably try again next year.)
 

Leo in NE Illinois

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Re: Wintering Princess Persimmon in zone 6b
« Reply #55 on: December 13, 2012, 12:13 AM »
Quote from: yamins
Owen, thanks ... On a related subject, does anyone know whether these persimmons airlayer well?  Or are cuttings a better way to propagate true to type?   (I also have the hope that a few of my seeds will germinate.  I  tried the first year with about 12 seeds, and none germinated. I'll probably try again next year.)

Just found and read this thread again. For what it is worth, in general, most any species of tree that can be propagated by cuttings can be air layered. I don't know if there is an exception for princess persimmon, but if it can be grown from a cutting, it should be possible to air layer.

Quote from: yamins
it seems fine to prune -- even quite heavily -- before ANY growth is pushed at all (e.g. in our zone, February) or after the tree's made it's first push and the foliage hardens off (e.g. any time after mid June in my zone).   In these cases, the branches seem to pop lots of little buds after pruning and remain healthy and vigorous.

However, I've noticed that if you do any pruning (even what I'd think would be considered fairly light) on a branch at the beginning of the growing season, it's not uncommon for the whole branch to lose vigor and die back.   In my zone, this "danger time" is between mid-march and late May or early June.   

If pruning is done during this "danger time" over the whole tree, this then seems to severely weaken the whole tree and cascade into other health issues.    In fact, one reason that I suspect that the causation is "pruning at wrong time --> loss of vigor --> other health issues" as opposed to the obvious confound ("other health issues --> loss of vigor after pruning at wrong time"), is precisely that on trees that I've trimmed a few branches of in March or April, those particular branches weaken and eventually die, but the rest of the tree can remain extremely strong.   Whereas the two trees that I did "overall" pruning to during the "danger period" -- well, one died and the other came very close. 

Thank you for this observation, I think I will follow your advice. It fit in with what little I learned when I germinated a batch of D virginiana some 8 years ago. Did some light pruning during active growth extension and lost those branches. Also, any that got repotted while in active growth, didn't do well either. I didn't set out to repot out of season, but when things get knocked off the bench, the process of getting but back into pots is repotting. But I didn't keep notes so my observations are more "vague but true" half remembered factoids. Not quite certain this is cause and effect. Perhaps Owen or others will over time add their reports from their observations this growing season, and next. 
 

Owen Reich

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Re: Wintering Princess Persimmon in zone 6b
« Reply #56 on: February 09, 2015, 05:32 PM »
Does anyone know Dennis Vojtilla?  I'd like to get in touch with him.
 

Marc

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Re: Wintering Princess Persimmon in zone 6b
« Reply #57 on: February 15, 2015, 07:26 AM »
Bill knows him & should have his contact info.