Citrus > Cold Hardy Citrus

"Swapping" of rootstock

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Mishaq:
Has anyone ever "swapped" rootstock on their citrus trees?

I want to plant a Yuzu tree in ground, but I can only source trees planted on volkamer here in the UK - which isnt a good candidate for long term hardiness.

My thought is to plant the yuzu tree in ground, and nearby plant a poncirus seedling which I will then approach graft above the graft union of the volkamer-yuzu tree. Eventually once the poncirus root is thick enough I will cut away the volkamer rootstock.

Has anyone ever tried anything like this? Am I just better off planting a rooted yuzu cutting instead? does anyone know sources to purchase yuzu on poncirus in the UK to save me all this hassle?

Peep:
I have never done approach grafts, but I have bought many plants on the wrong rootstock and just took a scion from it and regularly grafted it on the rootstock I wanted it on.

Then I would just sell the original plant.

Only downside is that your own grafted plant starts out smaller so it will take longer for you to get fruit. Although it also depends a lot on the size of the rootstock you make the new graft on.

Zitrusgaertner:

--- Quote from: Mishaq on January 13, 2026, 09:25:09 AM ---Has anyone ever "swapped" rootstock on their citrus trees?

I want to plant a Yuzu tree in ground, but I can only source trees planted on volkamer here in the UK - which isnt a good candidate for long term hardiness.

My thought is to plant the yuzu tree in ground, and nearby plant a poncirus seedling which I will then approach graft above the graft union of the volkamer-yuzu tree. Eventually once the poncirus root is thick enough I will cut away the volkamer rootstock.

Has anyone ever tried anything like this? Am I just better off planting a rooted yuzu cutting instead? does anyone know sources to purchase yuzu on poncirus in the UK to save me all this hassle?

--- End quote ---

That's not a good idea. Maybe you can buy a poncirus that has already a decent size and graft yuzu on it. Second you can try to root budwood from your yuzu and plant it in ground. Yuzu does very good on own roots and poncirus does not bring extra hardiness to your yuzu tree. In Japan they use yuzu as a rootstock for mandarins. Good luck.

Mulberry0126:
While it may not be the most efficient approach, it can certainly be done: https://tropicalfruitforum.com/index.php?topic=54875.msg522549#msg522549
You may also find it worthwhile to air layer the Yuzu from the Volkamer lemon portion.

Americ:
I successfully air layered Yuzu this past summer, so that is definitely a valid option.

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