Interesting/questionable bumps on variegated Crassula argentea

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Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Thu Apr 09, 2009 1:01 pm

Good day, Nina:

I may have the opportunity to work with an old jade in the near future...it is a variegated cultivar - foliage is lovely pale green and cream colored...the trunks have much character, but in addition to that, they have what I can best describe as cyst-like bumps on them...these don't appear as if they are a result of pruning scars or a disease process, and actually I feel they add some character to the trunks. Just wanted to get your opinion...please let me know if you would like photos. to follow. Thanks in advance.

Best regards,
Tom Simonyi

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  JimLewis on Thu Apr 09, 2009 1:48 pm

Photos, please!

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Thu Apr 09, 2009 1:58 pm

Will do, Jim....

Regards, Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Alan Walker on Thu Apr 09, 2009 5:33 pm

Tom: I have a jade bonsai, Portulacaria afra, which also has some bumps on it similar to what you describe. I think they may be from incomplete pruning or stubs from a broken branch. I'm not sure if the image I'm posting will show them, but we'll see... or not! Rolling Eyes
[img][/img]

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Thu Apr 09, 2009 7:37 pm

Hi, Alan: Nice tree...thanks for sharing. I don't see too much similarity upon studying your image (however, my eyes are not what they used to be). I will try to post images tomorrow...please have a look if you wish.
Thanks again.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Nina on Sat Apr 11, 2009 2:56 pm

Hey, Alan. Nice tree! Cunning of you to show it to us on the pretense that there's something wrong with it....

As for Tom: you need to post the picture. A lot of plants are sensitive to the crown gall bacterium, but a quick google search has turned up nothing about jade trees.

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Mon Apr 13, 2009 12:58 pm

Hi, Nina: Here are a couple of images as you requested...Thanks again in advance.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Mon Apr 13, 2009 12:59 pm

Here is one more (expanded view)....


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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  JimLewis on Mon Apr 13, 2009 5:49 pm

Were these bumps always there, Tom? The look to me like healed-over pruning scars, perhaps where leaves were torn off the stems at some time in the distant past.

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Mon Apr 13, 2009 6:05 pm

Good question, Jim....they appear to have been on the tree for quite some time...I suspect the tree has been in the university greenhouse for close to thirty years, and I have noticed it over the years in passing but never really paid a whole lot of attention to it...my attention is a bit more focused at this point because I may be able to work on it after cuttings are taken. Thanks for your insight.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  JimLewis on Mon Apr 13, 2009 10:42 pm

Maybe you could find an out-of-the-way lump and snip it flush with the trunk with a concave cutter and see what a cross section looks like.

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Tue Apr 14, 2009 12:45 pm

Good idea, Jim...I will do that the next time I visit the greenhouse. Thanks.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Alan Walker on Fri Apr 17, 2009 2:18 am

Tom: If you want to cut it flush (not concave), rather than using concave cutters, I would use a root cutter which has a sharp, straight blade.

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Mon Apr 20, 2009 12:54 pm

Thanks, Alan and Jim...

Jim: I did cross-section one of the "bumps" as you suggested and indeed it revealed normal plant tissue as best I can tell...so your theory is correct.

I thought I would include a full picture of the tree.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  JimLewis on Mon Apr 20, 2009 1:54 pm

Glad it was simple as that, Tom. In which case, I think I'd perform some delicate surgical removal of the "bumps." You could do it all at once to get it over with, or a few at a time to lessen the impact (if any) on the plant.

_________________
Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Mon Apr 20, 2009 1:57 pm

Thanks, Jim...

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Re: Interesting/questionable bumps on variegated Crassula argentea

Post  Tom Simonyi on Thu Jul 23, 2009 7:40 pm

Jim: I am preparing to repot this jade this weekend...I was talking to the greenhouse staff where the mother plant has been for many years and viewed some rooted cuttings they have taken from the plant within the last several months...the bumps appear on them as well...just an interesting sidebar.

Regards,
Tom

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Re: Interesting/questionable bumps on variegated Crassula argentea

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