Cold Hardy rootstock

[ash]

Can any advise me what cold Hardy plants would make the best rootstock. I want to buy two plants to grow for seeds so I can have my own supply of rootstock. These are the plants I have to choose from.

[jibro]

From these are more used as rootstock only X639 and African shaddock x trifoliata "Rubidoux", Morton is citrange with best taste among F1 Poncirus hybrids, but it's not commonly used as rootstock, I am not sure why, maybe it has smaller amount of seeds in fruits?
You can try also Yuzu, it was used as rootstock in Japan for good longevity of grafted satsuma trees. It has good acid fruits with lots of seeds and it's hardy to - 12 °C. X639 and African shaddock x trifoliata "Rubidoux" have fruits with bad taste.
I am using only poncirus and Citrumelo as rootstock, I would recomend obtain poncirus as source of rootstock seeds.

[ash]

Thanks. I think I might try yuzu just because at least the fruit has some uses.
I have a poncirus plant but it was grown from seed and hasn't flowered yet and it could be years before it does flower. I don't know where I can buy a grafted poncirus in Europe so it will flower immediately. Also while I will definitely be growing as much poncirus as I can since it grows easily outside. I was hoping to get something that grew a bit faster as well

[sanguinho]

If you already have the plant, have you thought about taking out new rootstocks from cuttings? I do it with plums and apple trees.

Anyway if you only want it for seeds, I would graft some branch on some other tree you have, I don't think it is necessary to have the whole tree.

I take this opportunity to ask if by grafting wood from a seedling onto an old tree, it can bloom soon instead of waiting years for the seedling to grow.

[ash]

I can't do anything with my poncirus I only bought it a few months ago and there was there was two in a tiny pot with very little soil.
It's looking really healthy now compared to when I bought it. It had no green on it at all then but it was cheap and the biggest oldest one I could find. I think next year it will be healthy now it has soil. Maybe I'll graft onto the smaller on next year but I want to make sure it's in perfect health first. If I could get some poncirus budwood then I'd graft it onto it but I can't graft anything else onto it because it will go outside next year

[ash]

Also I want the whole plant to give fruit because I want because I'd use them all to plant hedges and bushes everywhere. I can always dig them up if I need rootstock in the future. It just seems sensible to plant hundreds now

[zap]

MOST Poncirus hybrids taste horrible! There are select/improved Vars/varieties out there, but a rootstock gets chosen for toughness? -but probably not ever for flavor ...
If you are going to use the fruit as substitute for lemons & limes perhaps ask the guys at the grafting thread here. Seems like hybrid Yuzu, and hardy lemons would yield the most usable lemons for the kitchen. There are some select Vars of hardy lemons. People just resent that lime like poncirus after taste, and it lingers after they ripen.  (some are bitter grapefruit like)

You should ask @ the grafting thread at this site which edible poncirus rootstocks they have used? I know Laaz, and Dave have LOTS OF grafting experience. (I would go for edible with the coldest tolerance - so they can be re-grafted if you have bitter cold and the tops get frozen away)

Hedges sound awesome to me!

[zap]

Childhood neighbor had unnamed japanese citrus trees. Beautiful fruit, so acidic it would literally bubble away at my teeth.

Being an Aussie, 'e used 'em fo' G&T. (gin and tonic)
The Japanese supposedly bred the acid citrus Vars for preserving foods, (perhaps before Vinegar became available?)

Yuzu was in demand, for posh restaurants. Pre-plague...
Perhaps you could corner the market!

Don't forget to look for data on disease resistance for rootstock vars.  I read many citranges were recreated, re-selected & cloned as rootstock. (But not for eating)

Can Thomasville be used as a rootstock?  I think kumquats are root-rot susceptible??

[ash]

I think I managed to track down a grafted poncirus. I'm wait for it to be delivered from Italy. I was expecting it on Friday. So hopefully Monday.

I have ordered a yuzu from adavo along with a load of other types. But they haven't confirmed my order yet. I think they are overwhelmed with orders right now since they have just realised this years plants

[jibro]

What Yuzu did you ordered? I think Yuzu no 3 is the best overall, btw there is a map of poncirus tree in British isles, maybe you can obtain some budwood from mature poncirus tree growing close to your location... www.homecitrusgrowers.co.uk/poncirustrifoliata/poncirusmap.html

I ordered some plants from Adavo too, they confirmed my order but you are right, they are probably owerhelmed, their plants will be also smaller this year than usual, so don't expect too much

Only if you choose some unusual variety which nobody wants, you may get bigger plant from last year, I was lucky last year with Daoxian Wild mandarine, it has already fruits this year.

Daoxian wild after purchase - July 2019

Daoxian wild May 2020

[ash]

Yes I ordered yuzu number 3. Seemed like the best choice.

I've ordered poncirus and flying dragon and Citrumelo plants from Italy for creating rootstock seeds so hopefully I'll be ok for seeds soon or at least in a few years since they will be tiny plants. They only cost €10 each.
I also ordered a few kumquats from that site.

I ordered 12 plants from adavo so just hoping they will all still be in stock by the time they get to my order especially since I'm in the process of building a new greenhouse to house all the new plants

[jibro]

I've received plants from Adavo today, they are a little bit smaller, they usually using citrumelo as rootstock and sending bigger plants, this year most of their plants are grafted on smaller poncirus seedlings.
But plants look healty and packaging was good, so as I said before, considering price ~10 Euro for plant, it's OK.

[ash]

They confirmed my order but I'm having problems sending them money.
I need
Account prefix.
Account number.
Bank code.
To send money to Czech Republic but they just keep sending me an IBAN number so I'm a bit confused as what to do

[jibro]

You need to use IBAN for International payment inside EU: www.business.hsbc.uk/en-gb/payments/clearing-and-foreign-currency-payments/iban-and-bic

Making payments

Quote the IBAN you're given in the beneficiary account number field of your payment instruction, but don't include any spaces between the characters (they may have been inserted to make it easier to read).

Quote the BIC you're given in the beneficiary bank field, but don't include any spaces between the characters (they may have been inserted to make it easier to read).

Please note:
The IBAN you're given may be prefaced with 'IBAN' (eg. IBAN GB15HBUK40127612345678) and the BIC may be prefaced with 'BIC' (eg. BIC HBUKGB4B). Please don't include either preface. The above is provided as an example

[mikkel]

yes, the plants are much smaller now. When I first ordered 5 or 6 years ago, many were already flowering... that is the price of his success, for us buyers. But that is okay. Fortunately, there is Adavo!