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Messages - Zitrusgaertner

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Cold Hardy Citrus / Re: Unknown citrus
« on: November 19, 2019, 03:46:24 AM »
My 852 has serrated leaves that are rather rough. Not that smooth and shiny.

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 18, 2019, 04:09:05 AM »
Ilya, does your Citrumelo 5* drop leaves in late autumn? Mine keeps ist leaves over winter. Some of cause die but about 50% survive in a merely mild winter. Trifolis, which is said to be F2 and less hardy, changes colour and drops some leaves. Most hardy PT hybrids seem to drop leaves but also keeps some. Also leaves on my yuzu turn yellow and drop off. Not sure how many of them will get lost.

Cold Hardy Citrus / Re: Hardy citrus growing in Switzerland
« on: November 15, 2019, 07:13:11 AM »
Bernhard Voss update
He does not work in his pottery any more but takes care of a big Citrus Collection and still works as an arborist. His nursery was damaged during a storm and he did not rebuild the tunnel. But you can meet him at the Vienna citrus-fair (Wiener Zitrustage) in Schönbrunn Castle im Vienna.

Cold Hardy Citrus / Re: Hardy citrus growing in Switzerland
« on: October 25, 2019, 10:45:39 AM »
Usirius, do you know which one of all those 899-cultivars you have. They are very differnt. I have 4 of them, but non has fruits resembling Poncirus. All fruits are smooth and shiny.

Cold Hardy Citrus / Re: Hardy citrus growing in Switzerland
« on: September 19, 2019, 08:47:23 AM »
Usirius, did you dare tasting the fruit last year?

Cold Hardy Citrus / Re: Japan acid citruses
« on: September 19, 2019, 08:44:00 AM »
Ilya, you said Keraji ist growing slowly, but mine, high crafted on Poncirus, are the fastest growing plants of all my citri.
I am talking about the in-ground plants in the green house. It is their second year and they have a dense crown of 60cm. Of cause they have been cropped for  round shape. There are four of them -all the same.

Huyen Linh Ho wrote:

"I believe that all of papeda hybrid will lose their perfect ratio of leaf winged petiole and leaflet. The special character of papeda family was its distinct leaf shape. For example, yuzu has a much smaller leaf petiole comparing to ichang papeda."

as Ilya has made clear Yuzu -referring to DNA analysis- is no hybrid of ichang papeda. It seems to be a cross of some (probably lost) ichangensis-relative and sour mandarin.

Cold Hardy Citrus / Re: Japan acid citruses
« on: September 16, 2019, 09:48:02 AM »
And we do have the right Keraji? Hope so!

Cold Hardy Citrus / Re: Japan acid citruses
« on: September 09, 2019, 11:17:03 AM »
Radoslav, do you own all these varieties of sour Japanese citrus? Could you please drop a word about taste?  :-*

Cold Hardy Citrus / Re: Some rare variety hardy seedlings
« on: August 31, 2019, 09:18:25 AM »
for me this story is a little bit confusing: citrus leaves that smell from cabbage to basil and mint? Are you in a sommelier-class and just practizing?

Cold Hardy Citrus / Re: Citrandarin 899J (Bernhard Voss)
« on: August 08, 2019, 07:49:02 AM »
Ilya, 899A is much worse. The question is: is there a chance to get better results if I craft on another rootstock? Slower growing or faster growing? I could use FD or some Citrumelo.

Cold Hardy Citrus / Re: Suspicious Plants
« on: August 08, 2019, 07:45:36 AM »
300 years of good practice.
For potting soil horse manure is composted for two years. And I suppose USA nurseries don't use composted Beech-foliage either. Old Europeans have been growing Citrus for at least 2000 years. But you Americans do everything better, know everythig better and you decide what's good taste and which is not. This sometimes is a little bit annoying.

Cold Hardy Citrus / Re: Yuzu Seedlings
« on: August 08, 2019, 07:34:53 AM »
Millet, Bomand, your opinion. You are US-Americans. That obviously makes a difference. And you don't know much About Japan or Europe, I guess. Have a look at

Cold Hardy Citrus / Re: Suspicious Plants
« on: August 07, 2019, 11:07:34 AM »
Manure is pretty strong stuff and full of various salts. Well composted manure is good for seed beds but I would not use for soil or fertilize. I have used well composted manure tea...water well if you use it.
horse manure has Always been used as Citrus fertilizer. For hundreds of years. And composted horse manure is one component of the Citrus-soil that is used for the Citrus-collection of Schönbrunn Castle in Vienna.

Cold Hardy Citrus / Re: Yuzu Seedlings
« on: August 07, 2019, 10:56:24 AM »
Brian if you haven't tried one yet, you haven't missed much.

Millions of people in the world love Yuzu taste and in Europe it becomes more and more an issue for haut cuisine aswell.

Cold Hardy Citrus / Re: Citrandarin 899J (Bernhard Voss)
« on: August 07, 2019, 10:53:33 AM »
I might have asked it already... is your plant in open ground or in a pot?
Thank you!

Mine is in pot.

Cold Hardy Citrus / Re: Citrandarin 899J (Bernhard Voss)
« on: August 07, 2019, 10:47:44 AM »
I have 899J in open ground, unprotected since 2004.
It is now more than 3 m tall, but has not fruited yet.
It was a rather shy grower, twig damage was evident after -12C, and recovery next season was very limited, but main trunk was never damaged and this plant survived a winter with -16C and two weeks of frozen soil.

Ilya, is yours grafted on PT? It seems that 899A and 899J are not really compatible with PT. 899A has a sharp shoulder where scion meets rootstock. With 899J it is a bit less obvious. Same effect can be seen with Kumquat on PT.

Cold Hardy Citrus / Re: Citrandarin 899J (Bernhard Voss)
« on: August 06, 2019, 04:17:32 PM »
Millet, it is quite clear what this fruit is -exept of one striking point. Bernhard got some fruits from a Hybrid Poncirus X Changsha when he visited Riverside or another USDA-Citrus -site. The Citrandarin 899 obviously produces zygotic seeds. Back home Bernhard planted the seeds of his 899-fruits. As open pollinated, he did not know -and nobody knew- what the F2 parents could have been. He named the seedllings 899A to... R(?) and tested their cold hardiness. Some of them survived. I own 899A, 899F, 899K? and 899J. Allof them have already flowered and I got some fruits. J was the last. Fruit of A tasted nice and was sweet. It is strictly  monofoliate. the others have trifoliate leaves and taste nasty. That is the story.

Cold Hardy Citrus / Citrandarin 899J (Bernhard Voss)
« on: August 06, 2019, 09:53:29 AM »
The very first fruit of Citrandarin 899J

Cold Hardy Citrus / Re: Grafting
« on: July 03, 2019, 04:29:29 PM »
use parafolm grafting tape. Since I have found this I am nearly 100% successful.

Cold Hardy Citrus / Re: Unknown citrus
« on: June 30, 2019, 04:26:43 PM »
Looks like some Citrumelo. Could be Trifolis....

Cold Hardy Citrus / Re: Juanita Tangerine
« on: June 28, 2019, 04:37:17 AM »
But Juanita is said to having survived 0°F (-18°C). Once…  ;)

Cold Hardy Citrus / Re: Grafted Citrus
« on: June 28, 2019, 04:35:02 AM »
and PT is resistant to CTV as far as I know

Cold Hardy Citrus / Re: Interesting japan citruses.
« on: June 02, 2019, 02:38:26 PM »
not available in Europe, I suppose  :-X

That's why I thought of C. ichangensis IVIA. My IVIA has dark purple flush. But it is marked YuzuXCitrumelo
Your new hybrids are very impressive. It is one of these that carries flowers?

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