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Topics - Citradia

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Out of all my citrange/ hybrids, the dunstan is the only one to survive last winter unscathed weather in high tunnel or totally exposed in the open, my Dunstans are full leaf now and others are at best starting to come back at base of trunk: all of these trees did well this winter, staying green in high tunnel with water barrels even after a low of 7 degrees F, until we had warm weather all February followed by low of 14 degrees and then 16 degrees the following night in late March/ early April. Ironically, the Dunstans did not have water barrels, even the one on the west end of high tunnel. My theory is that even though I vented the tunnel with doors open on both ends when above freezing, the tunnel still made it warm enough in February to break dormancy on all but the dunstan and then when the 14 degree low hit, even with the closed tunnel and water barrels, it was too much cold for trees starting to sprout new growth.  A citradia that was uncovered all winter with only a barrel for additional heat, looks better now than the bigger citradia in the tunnel. I think next year I won't use tunnel and just let the fittest survive. In the pics the green tree at end of tunnel frame is dunstan,and the losers are as followes: Ichang lemons x2, Thomasville, pink FL grapefruit seedling (totally dead), citradia, rusk, Nansho Dai Dai, mortan.




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Cold Hardy Citrus / I killed poncyrus seeds!
« on: May 18, 2017, 06:47:25 PM »
I planted poncyrus seeds in pots full of potting soil like I do anything else, and they went through the winter outside right next to potted crabapple and Rowan seeds, and now the crab and Rowan are coming up just fine and no poncyrus; the PT seeds I dug up are rotten. I've never had to make a science out of potting soil for seeds. I've grown s bunch of Ichang and dunstan seeds indoors over winter, flying dragon outside in pots, but have never got PT to sprout. Ok, y'all tell me what I did wrong.

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With all the warm weather we've had the past two months this winter, as you all know, a lot of our fruit trees are starting or are in full bloom now. My trifoliata and trifoliate hybrids have started putting out little green shoots about a centimeter long. Obviously with the 14 degree low I had last night and barely getting above freezing during the past few days, all the peach/plum/crab/etc blossoms are toast, and the little citrus shoots are black. However, will this cold weather do real damage to the hybrid citrus trees as in loss of wood? Usually my citrus is late to wake up in spring, so no worries, but this year I don't know.

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Citrus General Discussion / First pomelo
« on: March 11, 2017, 05:46:02 PM »
I just bought my first pomelo fruit; how do you eat it? Like a grapefruit with spoon?

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Cold Hardy Citrus / Ichang Papeda search.
« on: March 05, 2017, 09:06:58 PM »
Crazy question: everyone has p. Trifoliata, but who has Ichang papeda (citrus ichangensis)? I know the fruit is supposed to be useless, but what if someone wants a big ol' citrus tree with big ol' fruit on it where it gets down to zero degrees? Who is growing it, and who is selling it or the seeds? Is it any good as a rootstock?

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Cold Hardy Citrus / My first trifoliata crop! Question:
« on: November 17, 2016, 03:21:57 PM »
Question: I just planted my Poncyrus trifoliata seeds in pots. Should they overwinter outsideto germinate in spring like they would naturally, or can I just keep them inside to germinate faster like any other citrus seeds? I've germinated citrumelo inside before, but it's half tropical. Didn't know if PT had cold requirement. This is my first PT seeds I've grown at home. I got Three Fruits this year. I tasted one before that I got somewhere else and it was nasty. I was surprised today that my PT smells and tastes like jasmine. Not really bitter and didn't make me pucker like a lemon would. 30 seeds in one golf ball size fruit though.






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Cold Hardy Citrus / New winter protection for Changsha.
« on: November 13, 2016, 01:28:16 PM »




My woodlanders Changsha is getting tall and I was afraid to let it go without protection this year, I made a frame of 3 4x4's and PVC pipes with 4mil plastic stapled to the frame. Plastic door rolls up to vent. 3 water barrels and small space heater with thermo cube switch as backup.

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Cold Hardy Citrus / Kimbrough getting big
« on: November 13, 2016, 01:21:06 PM »


I planted this satsuma about 5 years ago when it was a new graft from Stan Mckenzie. It has done very well.

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Cold Hardy Citrus / Seasonal freezing hours limit.
« on: August 28, 2016, 03:17:14 PM »
Although every site is different and different citrus varieties handle cold differently, etc, does anyone know of a standardized list of number of cumulative hours below freezing during a winter season different citrus varieties can endure before damage or death?  For instance, although Changsha is supposed to survive a low of 5 degrees, how many total hours below freezing could a 10 ft tall Changsha handle before it needs to be protected from any further freeze to avoid damage? I know there are too many variables, but just wondered if any other data out there concerning cold damage other than the lowest temp a variety has survived.

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Cold Hardy Citrus / Solar power generator for space heater
« on: August 14, 2016, 06:09:38 PM »
Hey, has anyone experimented with solar power heaters or solar power generator that could run a small space heater all night?  Brands, suggestions?

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Cold Hardy Citrus / Crocston grapefruit on tree 1.5 years.
« on: July 26, 2016, 08:11:50 PM »




This is the last of four Crocston grapefruits that my tree growing on FD, made last spring of 2015. The fruit has taken 1.5 years to mature, I think, due to lack of heat hours/heat units on top of this mountain. My satsumas mature each year in December though. I wonder if satsumas can mature in a climate with cooler summers since satsumas are more cold hardy, as a rule, than grapefruit and other forms of citrus. What do y'all think?

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Cold Hardy Citrus / Do satsuma seedlings have thorns?
« on: July 09, 2016, 10:07:16 PM »
In reference to a post on the topic of satsuma cuttings, do satsuma seedlings have thorns? According to Tom Mcclendon's book, Hardy Citrus for the Southeast, "Satsuma (citrus reticulata) is really a class of mandarins". We all know that mandarin seedlings are very thorny, like most citrus. I've only seen grafted satsumas, Kimbrough, owari, St Anne, etc, which of course is mature fruiting thornless wood grafted onto a rootstock. Has anyone grown a seed from one of these "seedless" sats and got a seedling satsuma tree with thorns? Maybe thornless seedlings is a difference between "satsuma" and its reticulata sister "mandarin".

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Cold Hardy Citrus / Plant maps.com
« on: June 17, 2016, 10:40:58 PM »
Oops! According to the map on plantmaps.com, my house is sitting in a small mountaintop island of zone 6b instead of 7a or 7b zones that are at the lower elevations only a few miles away. I was surprised to actually see my street in this gated community on the color-coded zone map on plant maps.com.

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Cold Hardy Citrus / First Crocston grapefruit not pink; why?
« on: January 04, 2016, 06:23:11 PM »




I got this grapefruit tree grafted on flying dragon from a reputable grower in SC who got his Crocston trees from the original grapefruit tree grown by his neighbor, Mr Crocston. He gave me a fruit off his tree back in March of 2013, and it was a light pink inside. I've seen Stan Mckenzie cut one of his Crocston fruits in November and it was light pink. I have a Rio Red grapefruit on flying dragon that gave me fruit last January but the inside was not red but barely a light peach color. My question is why? Do pink grapefruit need high summer heat to turn pink/red? I don't get a lot of summer heat in the mountains here. Or do my fruit need more time to fully ripen and turn from white to pink. I noted a slight pink blush on the albedo/ rind of this "Crocston ".

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Cold Hardy Citrus / Crocston grapefruits
« on: October 25, 2015, 02:05:23 PM »
My first Crocston crop; now just need to get ripe.






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Cold Hardy Citrus / Meiwa kumquat starting to ripen
« on: October 25, 2015, 02:00:19 PM »




The garbage can is full of water; getting ready for winter.

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Cold Hardy Citrus / Sats are still solid green.
« on: October 11, 2015, 08:02:44 PM »
My sats(Kimbrough and Owari) are still green as grass. Last year not ripe until Christmas.


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Cold Hardy Citrus / No posts?
« on: May 18, 2015, 09:34:08 PM »
Why is nobody posting anything to cold-hardy citrus forum? Did everybody's citrus die out the past two winters?

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Kimbrough, owari, and crocston going to bloom! Plastic, Thermo cube, space heaters, worked again.








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Cold Hardy Citrus / Another cold January for citrus!
« on: January 08, 2015, 11:49:40 AM »
1-degree F at my house this AM. Hope my winter protection holds out again this year.

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Cold Hardy Citrus / My first satsuma crop. Owari and Kimbrough.
« on: November 23, 2014, 07:16:45 PM »





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Cold Hardy Citrus / Ripening fruit on dormant citrus?
« on: October 09, 2014, 09:43:37 PM »
I protect my citrus from severe cold with plastic covers on/off and space heaters as needed in winter. If I'm trying to keep them dormant so they are cold hardy, how can the fruit continue to develope? I know there are early varieties, but my owari and Kimbrough fruit are still small and green as grass. My Star grapefruit did not ripen until late January last winter.






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Citrus General Discussion / Owari blooming in western NC!
« on: May 05, 2014, 08:13:13 AM »

My owari and star grapefruit survived the polar vortex and are now blooming alongside rhododendron and mountain ash. Sorry pic is sideways; site turned it for some reason.

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