1
Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: July 15, 2025, 07:32:19 AM »
Thanks very much Ilya,
very interesting results 👍,
nice hardiness percentage.
very interesting results 👍,
nice hardiness percentage.
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2
Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: July 15, 2025, 02:16:13 AM »
Hello Ilya,
did you also report about your freeze test of this cross, how
much of the seeds survived after the test ? It would be interesting to
see some actual pictures of these crossed plants and there leave shapes.
Thanks Frank
Modify message
did you also report about your freeze test of this cross, how
much of the seeds survived after the test ? It would be interesting to
see some actual pictures of these crossed plants and there leave shapes.
Thanks Frank
Modify message
3
Cold Hardy Citrus / Re: So many enthusiasts and no one got the acid-free Siamese pomelo?
« on: July 14, 2025, 04:48:09 PM »
Hello Ilya,
did you also report about your freeze test of this cross, how
much of the seeds survived after the test ? It would be interesting to
see some actual pictures of these crossed plants and there leave shapes.
Thanks Frank
did you also report about your freeze test of this cross, how
much of the seeds survived after the test ? It would be interesting to
see some actual pictures of these crossed plants and there leave shapes.
Thanks Frank
4
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: July 13, 2025, 03:43:05 PM »
The 3 survivors of the cross Chandler x Bloomsweet are slow growing.
No. 1 and 2 had double twigs. So in spring I grafted one of the double
twigs on Poncirusseedling rootstocks (Kinga).
Now they took and look well, and it seems the rootstock will help
for faster growing. Leave taste test and freeze test already have been
promising - now patience is needed til flowering and fruiting.
Chandler x Bloomsweet with labels
Number 2
Number 1
Number 3 I still have to graft.
No. 1 and 2 had double twigs. So in spring I grafted one of the double
twigs on Poncirusseedling rootstocks (Kinga).
Now they took and look well, and it seems the rootstock will help
for faster growing. Leave taste test and freeze test already have been
promising - now patience is needed til flowering and fruiting.
Chandler x Bloomsweet with labels
Number 2
Number 1
Number 3 I still have to graft.
5
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: June 30, 2025, 02:07:46 AM »
No I didn' t have seedless ones.
Seems that without cross pollination they shall be seedless.
Seems that without cross pollination they shall be seedless.
6
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: June 28, 2025, 11:14:33 AM »
After setting and keeping 2 fruitlets from 2 flowers,
Thomasville remembers her Kumquat ancestry and
pushes a lot flowers after some hot days
Thomasville remembers her Kumquat ancestry and
pushes a lot flowers after some hot days
7
Cold Hardy Citrus / Re: Clementine Oronules × Citrus ichangensis IVIA
« on: June 22, 2025, 03:51:44 PM »
Too bad, could have given also a promissing cross concerning fruit quality
and more hardiness with early fruits.
and more hardiness with early fruits.
8
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: June 14, 2025, 01:07:39 AM »
Thank you Tamasz. Though I have not tested frost hardiness, due to
my experiences with the parents in ground since a few years.
And with three plants even one should have herited frosthardiness.
my experiences with the parents in ground since a few years.
And with three plants even one should have herited frosthardiness
.9
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: June 09, 2025, 02:09:56 AM »
From the crossings Yuzmelo x Bloomsweet left side and Chandler x Bloomsweet right side,
the Yuzmelo x Bloomsweet with Terminalflower set small fruitlet.
Before dropping the fruitlet I decided to taste it against a
Oroblanco Grapefruit fruitlet.
The positive surprise was that the fruitlet of Yuzmelo x Bloomsweet was
with nearly no bitterness, while Oroblanco was still very bitter.
So taste of this cross seems promising, so only frosthardiness
is still to test.
the Yuzmelo x Bloomsweet with Terminalflower set small fruitlet.
Before dropping the fruitlet I decided to taste it against a
Oroblanco Grapefruit fruitlet.
The positive surprise was that the fruitlet of Yuzmelo x Bloomsweet was
with nearly no bitterness, while Oroblanco was still very bitter.
So taste of this cross seems promising, so only frosthardiness
is still to test.
10
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: June 02, 2025, 02:36:54 PM »
Finally after 5 years in ground my Thomasville brings first flowers .
Never damaged in Winters but with late sun she grew slowly
Also very nice, that slava micurina after 3 year in ground
had a few flowers
Bloomsweet after 3 years in ground also has some flowers,
very curious if fruits will be hold and how
they will mature in my climate.
My potted Bloomsweetfruits are eatable
November/ December.
.Never damaged in Winters but with late sun she grew slowly
Also very nice, that slava micurina after 3 year in ground
had a few flowers
Bloomsweet after 3 years in ground also has some flowers,
very curious if fruits will be hold and how
they will mature in my climate.
My potted Bloomsweetfruits are eatable
November/ December.
11
Cold Hardy Citrus / Re: Making improved citrangequat (Nagami x citrange Morton)
« on: May 31, 2025, 11:19:16 AM »
I think every new crossing is interesting, the only problem with kumquat heritage could be the
late ripening time in zone7 and 8 with springfreezes which damage the fruit.
late ripening time in zone7 and 8 with springfreezes which damage the fruit.
12
Cold Hardy Citrus / Re: F2 Citrandarin (X-639) winter hardiness trial
« on: May 31, 2025, 01:51:32 AM »
Very interesting the story of Dr.Frey and his selections.
Especially because I'm a fan of Sanford Curafora and since 5 years in ground it
makes me a lot of pleasure with growth, overbording flowers and better fruits
than many hardy citrus hybrids.
Thanks Usirius for these interesting excerpt of the book.
Especially because I'm a fan of Sanford Curafora and since 5 years in ground it
makes me a lot of pleasure with growth, overbording flowers and better fruits
than many hardy citrus hybrids.
Thanks Usirius for these interesting excerpt of the book.
13
Cold Hardy Citrus / Re: Bifoliate Star Ruby seedling
« on: May 27, 2025, 10:38:28 AM »
Do you know where tve fruit came from, country ?
I also can hardly imagine that poncirus or Citrumelos
flower in professional fruit orchards
.
But time will tell, if your seedlings keep this
trait it would have been a crossing
with trifoliate
.
I also can hardly imagine that poncirus or Citrumelos
flower in professional fruit orchards
.But time will tell, if your seedlings keep this
trait it would have been a crossing
with trifoliate
.14
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: May 13, 2025, 03:43:15 PM »
Thanks Tamasz, the plant is from December 2023.
Yes for 1,5 years they are not too big, but in 2024 they didn't grow very well
and some died. So 3 left and now in 2025 they grow not fast but look good
.
Yes for 1,5 years they are not too big, but in 2024 they didn't grow very well
and some died. So 3 left and now in 2025 they grow not fast but look good
.15
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: May 12, 2025, 03:57:54 PM »
One of my 3 resting Yuzmelo x Bloomsweet seedlings shows a nice
terminalflower, also with nice decent smell.
terminalflower, also with nice decent smell.
16
Cold Hardy Citrus / Re: Gemini
« on: May 04, 2025, 09:09:39 AM »
Looks quite interesting with first valentine and then
trifoliat leaves.
Will you make an early freeze test ?
Leave taste also would be interesting.
Good success
trifoliat leaves.
Will you make an early freeze test ?
Leave taste also would be interesting.
Good success
17
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: May 03, 2025, 04:31:10 AM »
I wasn' t aware of that, thanks Mikkel 
18
Cold Hardy Citrus / Re: Low protection Citrus experiment in zone 7b France
« on: May 02, 2025, 05:32:07 PM »
Also Hirado buntan x Keraji could be a good option
19
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: May 02, 2025, 05:05:05 AM »
Today I started my crossings.
Had Pollen Yuzu N30 from Skandiberg (thanks again) and a nice
Flower of 5* Citrumelo.
Unfortunately after 90% of work getting pistil free one bad movement
of the knife broke the pistil
.
O.K. lets wait for the next flowers.
See pictures.
Had Pollen Yuzu N30 from Skandiberg (thanks again) and a nice
Flower of 5* Citrumelo.
Unfortunately after 90% of work getting pistil free one bad movement
of the knife broke the pistil
.O.K. lets wait for the next flowers
.See pictures.
20
Cold Hardy Citrus / Re: Dimicelli - What is it?
« on: April 30, 2025, 04:07:16 PM »
I also doubt 50% Trifoliate due to leaf shape.
Mine currently forms out first flower buds, I' m really curious
to fruit taste. From first clemyuz 22 fruits I was not 100% convinced
of fruit taste, had a slight aftertaste.
Hope Dimicelli is better.
Mine currently forms out first flower buds, I' m really curious
to fruit taste. From first clemyuz 22 fruits I was not 100% convinced
of fruit taste, had a slight aftertaste.
Hope Dimicelli is better.
21
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: April 27, 2025, 03:01:30 AM »
Hello Muberry0126 and a_Vivaldi,
I can confirm you, that Keraji has a realy very good
manarin/lemonade taste and is
eatible from end of November also in my colder
climate. Only small disadvantage is the
medium seediness but for crossing it s no disadvantage.
I can confirm you, that Keraji has a realy very good
manarin/lemonade taste and is
eatible from end of November also in my colder
climate. Only small disadvantage is the
medium seediness but for crossing it s no disadvantage.
22
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: April 26, 2025, 12:40:55 AM »
Thanks Rei, Florian and Skandiberg for your suggestions,
I added them on my list.
Very challenging due to a lot of opportunities,
but also very happy to have these opportunities.
I added them on my list
.Very challenging due to a lot of opportunities,
but also very happy to have these opportunities.
23
Cold Hardy Citrus / Re: Frosthardiness experience with citrusvarieties in zone 7, down to 3,2 F
« on: April 25, 2025, 01:29:01 PM »
Help needed ,
Below are my citrus with flowers and I would
ask you what would be your suggestions
for crossing, with the goal of good tasting
and as much as possible frosthardy under
respect of zygosity. Chandler x Bloomsweet
and Yuzmelo x Bloomsweet I made
already the last years.
I'm curious to your suggestions
Flowers 2025
Clemyuz 22
Trifeola - Pollen (small plant)
5* Citrumelo
Bloomsweet
Oroblanco Grapefruit
Rio red Grapefruit
Sanford Curafora
Yuzu
Keraji
Newhall Orange
Satsuma sotchi
Yuzu N30 - Pollen
Slava micurina orange
Dimicelli ?
YuzuxCitrumelo ?
,Below are my citrus with flowers and I would
ask you what would be your suggestions
for crossing, with the goal of good tasting
and as much as possible frosthardy under
respect of zygosity. Chandler x Bloomsweet
and Yuzmelo x Bloomsweet I made
already the last years.
I'm curious to your suggestions
Flowers 2025
Clemyuz 22
Trifeola - Pollen (small plant)
5* Citrumelo
Bloomsweet
Oroblanco Grapefruit
Rio red Grapefruit
Sanford Curafora
Yuzu
Keraji
Newhall Orange
Satsuma sotchi
Yuzu N30 - Pollen
Slava micurina orange
Dimicelli ?
YuzuxCitrumelo ?
24
Citrus General Discussion / Re: Cold Tolerance after 2025 Freeze
« on: April 24, 2025, 02:26:21 AM »
For my experience
1. Rootstock is very important for cold hardiness
(Poncirus is best)
2. Cold hardiness of grafted variety
3. Individual health status of rootstock and graft
.....
- Carizzo is not very cold hardy
- I guess the sometimes reported cold hardiness of
Juanita is not existing. My Satsuma Collot on
Poncirus froze down 5cm over grafting point
at -9 °C but resprouted.
1. Rootstock is very important for cold hardiness
(Poncirus is best)
2. Cold hardiness of grafted variety
3. Individual health status of rootstock and graft
.....
- Carizzo is not very cold hardy
- I guess the sometimes reported cold hardiness of
Juanita is not existing. My Satsuma Collot on
Poncirus froze down 5cm over grafting point
at -9 °C but resprouted.
25
Citrus General Discussion / Re: How to Cross Citrus Varieties - Need Help
« on: April 24, 2025, 02:18:26 AM »
Very interesting description Lauta_hibrid.
I don't have finger limes, but I heard from eating out of hand
they are not the best - what was the goal to cross them with pomelo ?
I would rather cross to get more tasty fruits or more
Cold hardyness or good combination of these two
Characteristics.
I don't have finger limes, but I heard from eating out of hand
they are not the best - what was the goal to cross them with pomelo ?
I would rather cross to get more tasty fruits or more
Cold hardyness or good combination of these two
Characteristics.
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