Tropical Fruit Forum - International Tropical Fruit Growers

Citrus => Cold Hardy Citrus => Topic started by: Florian on May 18, 2018, 01:39:50 PM

Title: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on May 18, 2018, 01:39:50 PM
Let's hope it is as hardy as they say.
(https://s31.postimg.cc/5ecmex5sn/20180518_133338.jpg) (https://postimg.cc/image/5ecmex5sn/)

(https://s31.postimg.cc/3mjnjzjuv/20180518_133352.jpg) (https://postimg.cc/image/3mjnjzjuv/)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Citradia on May 18, 2018, 06:01:05 PM
Fabulous! May it be blessed.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on May 20, 2018, 02:32:28 PM
It's been very late this year, flowers are only appearing now and it barely put on any growth. That's why I thought it would be better off in the ground.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Millet on May 20, 2018, 03:18:16 PM
Most literature claim the Inchangensis is hardy to 0-F (-18C)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on May 21, 2018, 05:06:45 PM
It is certainly very hardy when fully resting.
The problem is that its threshold temperature for vegetation start is less than that for poncirus and its hybrids.
In climates with large  winter temperature variations it is damaged even before citranges.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Minayato on May 21, 2018, 11:46:59 PM
Be assured that this information is good for those who are interested in this.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on May 22, 2018, 03:37:41 PM
It is certainly very hardy when fully resting.
The problem is that its threshold temperature for vegetation start is less than that for poncirus and its hybrids.
In climates with large  winter temperature variations it is damaged even before citranges.

And at what temperature is that threshold more or less? But I don't think that will be much of a problem here.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on May 23, 2018, 02:02:57 PM
I lost Ichangensis from B.Voss several years ago when winter was mild, followed by one night  of  -6C  in the beginning of April.
Another ichangensis (SRA241) in open ground, without protection; had some branch damage last two winters.
You should probably plant it in a shadow to minimize temperature fluctuations. 
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Zitrusgaertner on June 02, 2018, 04:11:12 PM
I suppose it was grafted on PT? Bernhards "super hardy" Ichang was the first to die surrounded by Ichan-seedlings that all survived on their own roots... My C. ichangensis IVIA survived last winter without branch-damages   when even one of my PT died from bark cracks. It lost 50% of its leaves -no problem.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on June 03, 2018, 11:43:29 AM
Yes,  they were grafted on poncirus.  Which IVIA variety do you have - IVIA358 or IVIA235?
Below is a flower of IVIA358

(https://c.radikal.ru/c17/1806/2f/db29855809a7.jpg) (https://radikal.ru)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on June 03, 2018, 03:06:52 PM
Ilya, can you tell from these pictures which one mine is?
(https://i.imgur.com/mY5jXVi.jpg?2)

(https://i.imgur.com/X8xq8NY.jpg?2)

In IVIA's description of 235 it says that new growth is only lightly purple whereas mine is intensely purple. Am I correct in assuming mine is 358?

Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on June 03, 2018, 06:14:11 PM
Yes, yours is 358, IVIA235 has small flowers
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Zitrusgaertner on June 04, 2018, 05:00:59 AM

(https://s15.postimg.cc/mu7i1qx7r/Ichang_IVIA.jpg) (https://postimg.cc/image/mu7i1qx7r/)

This is mine. Which one is the better tasting?
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: mikkel on June 04, 2018, 05:34:57 AM
this is IVIA358
http://www.ivia.gva.es/documents/161862582/163677405/358-PAPEDA+DE+ICHANG+FLOR+GRANDE-IVIA-16.pdf/08073fa6-3310-4319-a964-4a25cc9e9cdb (http://www.ivia.gva.es/documents/161862582/163677405/358-PAPEDA+DE+ICHANG+FLOR+GRANDE-IVIA-16.pdf/08073fa6-3310-4319-a964-4a25cc9e9cdb)

IVIA235
http://www.ivia.gva.es/documents/161862582/163677405/235-PAPEDA+DE+ICHANG-IVIA-16.pdf/baae659b-bc27-490d-a6ac-2023b19c2a1a (http://www.ivia.gva.es/documents/161862582/163677405/235-PAPEDA+DE+ICHANG-IVIA-16.pdf/baae659b-bc27-490d-a6ac-2023b19c2a1a)

I suspect IVIA358 is the better one. It looks like mine.

@Florian is yours flowering right now?
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on June 04, 2018, 10:16:26 AM
Mikkel, yes it is only flowering now. Usually it is about month earlier.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on June 04, 2018, 10:16:45 AM
Mikkel, yes it is only flowering now. Usually, it is about month earlier – no idea what's wrong.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Zitrusgaertner on June 05, 2018, 04:41:04 PM
IVIA says about 235: "El árbol es de tamaño mediano, porte abierto, compacto y prácticamente sin espinas." Without spines! Mine is full of spines! And they write about an elipsoid: el fruto .... tiene forma elipsoidal. The question is what kind of elipsoid?
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Heinrich on June 06, 2018, 03:57:33 AM
I grow a similar plant. I suppose it is C. ichangensis. It bears a few spines and is almost thornless. With these glossy, broad winged leaves, and the purple new growth, it is the most ornamental citrus plant, I know.


(https://s22.postimg.cc/6cmq0ngf1/ich.jpg) (https://postimg.cc/image/6cmq0ngf1/)


(https://s22.postimg.cc/6gh00d2v1/ichang.jpg) (https://postimg.cc/image/6gh00d2v1/)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: mikkel on June 06, 2018, 04:02:37 AM
did you already have fruits?
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Heinrich on June 06, 2018, 04:13:45 AM
did you already have fruits?
No, I didn´t. I am still waiting for the first flowers to open.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on June 06, 2018, 08:07:40 AM
Mine has no spines.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Heinrich on June 06, 2018, 05:37:16 PM
The plant has altogether 16 thorns. Only some shoots produce them. Most are smaller than this one.
(https://s22.postimg.cc/54ilju9l9/ichthorn.jpg) (https://postimg.cc/image/54ilju9l9/)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Heinrich on July 02, 2018, 04:41:35 PM
Like last year, the flowers of my plant did not develop further, as shown on the picture. Ilya, can you conform its identity, even without an open flower?
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on July 03, 2018, 03:08:14 AM
The leaves are not fully visible on your photo. Could you please make a picture from the top.
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Heinrich on July 03, 2018, 03:48:35 PM
The plant on June 06, 2018
(https://s15.postimg.cc/d5t03af47/ichang.jpg) (https://postimg.cc/image/d5t03af47/)
The plant on July 03, 2018
(https://s15.postimg.cc/g2g13d2vr/ich2.jpg) (https://postimg.cc/image/g2g13d2vr/)
(https://s15.postimg.cc/7wxz5eh9j/ich3.jpg) (https://postimg.cc/image/7wxz5eh9j/)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Ilya11 on July 04, 2018, 03:35:26 AM
Heinrich,
I believe your plant is IVIA358


Robert,
Fruit of my IVIA358 as of today:

(https://a.radikal.ru/a20/1807/95/e2c2d2bad478.jpg) (https://radikal.ru)

"forma achatada y estilo persistente" (flat shape and persistent style)
Title: Re: Today, I've put my ichangensis IVIA in the ground.
Post by: Florian on April 06, 2019, 10:19:27 AM
The IVIA survived its first winter fine but it does not look too happy. However, it started to look like this last year already, so this does not seem to be a winter problem.

(https://i.postimg.cc/T56KmgTG/20190406-095950.jpg) (https://postimg.cc/T56KmgTG)

I was a bit surprised by the differences between the two backup plants I grafted last year. The left one is already flowering. They are on identical rootstocks in identical substrate.
(https://i.postimg.cc/2VT1b1MR/20190406-104338.jpg) (https://postimg.cc/2VT1b1MR)