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Messages - Florian

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Cold Hardy Citrus / Re: Hardy citrus growing in Switzerland
« on: January 27, 2019, 04:43:22 PM »
I have a K which is also monofoliate. Btw. I thought they went from A to R not only K.

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: January 26, 2019, 04:45:45 AM »
Check out the Hamlin x FD:
It appears to be rather coldhardy.

Cold Hardy Citrus / Re: Trifoliate hybrid ID
« on: January 26, 2019, 04:08:00 AM »
Ok, I see. That makes sense. Mine is grafted. But then I am not convinced the above plant is Thomasville since almost all of its leaves are trifoliate (although on some the two side leaflets are very small).

Cold Hardy Citrus / Re: Trifoliate hybrid ID
« on: January 25, 2019, 02:19:37 AM »
Ilya, is your Thomasville trifoliate? Mine is exclusively monofoliate.. ???

Socal2warm, Montreux is one of the mildest places in Switzerland north of the alps.
The wall is indeed facing south and the little tree is only a couple of metres away from lake Geneva.
I guess that a Satsuma would survive most winters there unprotected.

Welcome to the forum!
Just beware when buying citrus because there are many different cultivars of some species and also some wrong names in the trade.
For example, Eisenhut's Sudachi (N 80) is in fact a Hana Yuzu. There is also a fake (Russian) Yuko which is in fact a variety of lemon.

Since you are from the Netherlands, you could perhaps contact

Check out Citrus pages for more information on citrus coming true from seed and more:


Cold Hardy Citrus / Trifoliate hybrid ID
« on: January 24, 2019, 07:24:01 AM »
Seen today in Montreux (CH), any guesses?

Citrus General Discussion / Re: Citrus inodora
« on: January 20, 2019, 02:06:59 PM »
Good stuff. Does it occur naturally where you live? Is the fruit any good? It looks tiny and seedy on pics.

Citrus General Discussion / Re: Golden Retrever Tasting A Lemoon
« on: January 15, 2019, 02:40:43 PM »
So does baby eating lemon :).

Cold Hardy Citrus / Re: More unusual/obscure cold hardy citrus hybrids
« on: January 14, 2019, 02:45:47 AM »
Unfortunately, none of these are readily available to us (except Glen and Thomasville).
I have all four of the ones listed, and will be happy to send out seeds once they have fruited, but they're still probably a long way away from fruiting.

Eyeckr has some extra Glen citrangedin fruits, I'm sure he could send you one. Though after looking at the fruit for myself, I'm not sure I'd bother.

Thanks for the offer. Glen and Thomasville are easily available here but not the others. I shall ask Eyeckr.

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: January 14, 2019, 02:34:29 AM »
Common pot with seedlings of SwampLemonXC.ichangensisIVIA358 cross

Very cool!

Cold Hardy Citrus / Re: More unusual/obscure cold hardy citrus hybrids
« on: January 13, 2019, 06:32:43 AM »
Unfortunately, none of these are readily available to us (except Glen and Thomasville).

Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: January 13, 2019, 06:28:02 AM »
The one notable exception is Poncirus trifoliate, a monospecific genus.  Poncirus species has scale protected flower buds which are initiated during summer. Bloom occurs in early spring, on leafless branches which have completely shed their characteristic trifoliate leaves at the beginning of winter. (Biology of Citrus)

I wonder if that also applies for Poncirus polyandra, the other known species of this genus, which appears to be less coldhardy?

Temperate Fruit Discussion / Re: Hardy cactus with edible fruit?
« on: January 10, 2019, 03:45:03 PM »
I have only had fruit from my Opuntia humifusa but they are tasty. Only about the size of a date but sweet and with a fruity flavour. Opuntia engelmannii would have larger fruit than humifusa but still much smaller than O. ficus-indica.

Not very likely, at least not from a direct cross.

However you might take a look at this:

I ordered those a well, 3 have sprouted so far.

I read on a French forum that ebay picture was taken from Procimquat description of Eizenhut Swiss nursery (Z175

Hmm, that really is Eisenhut's picture! In the ebay description it says this is supposed to be a Procimequat x Poncirus. One would expect a certain percentage of trifoliate leaves from such a cross, right?

Non stratified Poncirus seeds will germinate just as well but you can also leave the fruit outside and plant the seeds in spring. I don't know if it is good to store the fruit at room temperature.

Cold Hardy Citrus / Re: Citrus ichangensis x sinensis (194)
« on: January 06, 2019, 03:18:49 PM »
The fruit is said to show nice quality? I bought mine from Adavo and it is marked as Shangjuan. Don'tknow if it is the same you are talking about.

Yes and no. Yes, the fruit is of good quality approaching those of true oranges. Sweet with no bitterness.
But no, this one is not Shangjuan. Shangjuan is Ichang lemon / C. wilsonii.

Also check out this link from a French forum. Aunt Google will certainly help you to understand but there are also more pictures, including one of Eisenhut's mother plant:

Cold Hardy Citrus / Citrus ichangensis x sinensis (194)
« on: January 04, 2019, 03:41:25 AM »
Since it was mentioned in the Sudachi topic, I thought I'd share a pic of mine.

In short: Fruit can ripen here but, at least as a small plant, it is not coldhary enough for my place.

I planted it in 2015 and it survived its first winter with a low around -8C without a problem.
In the winter 16/17 it lost 3/4 of its leaves and half of its twigs to around -11C. I had protected it with three layers of fleece. We had some long-lasting freezes with many consecutive days below 0C which is what I believe did the damage. It grew back well and even flowered again but dropped the fruit.

I protected it with styrofoam in the winter of 17/18 and it has grown very well this year. Unfortunately no flowers.

Cold Hardy Citrus / Re: Sudachi cold hardiness
« on: January 03, 2019, 12:39:05 PM »
I am currently testing an Ichangensis x sinensis cross from Eisenhut (Z194: on the western wall of the house.

Sold by Eisenhut but made by Bernhard Voss.

IchangensisXSinensis was crossed by B.Voss in Hamburg? Never heard of it.
In Eisenhut catalogue it is from former  Czechoslovakia.

Wasn't it made in former Czechoslovakia but brought to Germany and subsequently distributed by B. Voss? But we should probably start a new topic for the Ichangensis x sinensis..

Temperate Fruit Discussion / Re: Arrayán, Luma apiculata
« on: December 15, 2018, 05:47:04 AM »
Thanks for bringing these plants to my attention. I had never heard of them before, very interesting.

Fingers crossed that all goes well over there. Here, winter has been very mild but that can change very quickly.

Cold Hardy Citrus / Re: Citsuma Prague
« on: December 06, 2018, 03:43:18 AM »
I can ask the citrus growers from university of Prague if they still have some plants. They dig out lots of old subtropical trees, old citrus trees are ok, but radically pruned.

It would certainly be interesting to see what gems they still have hidden somewhere.

Cold Hardy Citrus / Re: Citsuma Prague
« on: November 30, 2018, 01:44:15 PM »
Some leaves on mine show it too. Interestingly enough, a graft that I made this year does not show it on any of its leaves.

Btw. how is your crop looking this year, Sylvain?

Cold Hardy Citrus / Re: Poncirus fruit comparison
« on: November 23, 2018, 10:54:19 AM »
Thanks a lot Ilya for this comparison.

If only we had something like that here!

Cold Hardy Citrus / Re: Citreae tribe hardiness
« on: November 08, 2018, 02:54:12 PM »

> Poncirus polyandra is not as hardy as trifoliata, or so I was told but I do not know how much it can take. The few people who have it do not want to risk their plants (yet).
I shall try next winter.

And I shall follow your tests with great interest :). But Mikkel's remarks are not too encouraging.

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