The Tropical Fruit Forum

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  .

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.

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.

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
 .

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 

Also Hirado buntan x Keraji could be a good option

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.

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.

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.

Not sure if Taitri is such a big gold nugget in citrus world   .
https://hardycitrus.blogspot.com/2014/02/taitri.html?m=1

Today graftet my first own crosses Chandler x Bloomsweet wich took -8 °C as 1 year old seedlings.
But the 3 survivors needed 2024 to recover and now seem to be again in
pretty good shape and thrive.
Two of the 3 seedlings had more twigs, so
it was possible to take a smal scion of them
for grafting.
Now looking forward for further good and faster
groth on Poncirus and Citrumelo 5* rootstocks.

Before grafting


After grafting and added variety badge

Yes I also had some inground citrus which died after winter ,
where I think due to problematic rootstock - one poncirus rootstock
with grafted HRS899a died in first winter around graft unit.
Other Poncirus with Keraji on it got phytophora, had to cure and
cut half of the plant and now 3 years later wonderfull plant with
lots of fruits and looks pretty and healthy.
So I agree, that lots of (winter) dying plants are often not due
to cold hardiness but problems before, combined with winter stress.
Good luck and lets keep on trying and fighting for our inground citrus in
the hardier zones  .

Sorry to hear that of your Morton.
I made the experience that rootstock Flying dragon and very late morning sun
in winter and spring is a good thing and helps the plants a lot.
How cold did you get ?