The Tropical Fruit Forum

Citrus TreeSource or Lyn Citrus would be the go-tos in California.

Agreed that the wildly long leaves don't look like any of the hundreds of Citrus depressa I've grown from seed, but some of the other pictures are closer; and with something like a 20% zygotic offspring rate, who knows what the long boy is.

I'd start with encouraging you to try T-budding again; if the bark isn't slipping, that may be because the bark isn't slipping, and it's not a good time to bud. If you're really striking out with budding, I'd recommend a Z-graft, as something which is a lot less fussy, and may circumvent whatever problems you're having with budding.

I’m in the process of getting it cleaned up in the CCPP program. It did have several pathogens so if you receive buds from anyone it’s not pathogen free. Hopefully I’ll get clean buds back by spring of 25. It is a slow and expensive process. When I receive buds I still have to grow out increase trees and then production trees.

So grateful that you're doing that, Hershell! Wow. Thank you, on behalf of all of us!

Paying for custom-grafted trees from someone else can be worth it if you don't already have suitable rootstock on-hand, don't have a lot of space to keep enough on-hand to support your learning process, or can't grow a tree as quickly as the custom grower can. I do a lot of grafting, myself, but I'll also happily buy trees that someone else can get further along faster than I can; much as I grow my own rootstock, but will buy from someone else when the price is right. Well-tuned commercial operations are sometimes so much more efficient that it's cheaper than doing it myself to reach the same point, as well as potentially being much quicker. People have all kinds of reasons for making the choices that they do.

Most calamansi I've had are near to key lime in sourness, while I've had a lot of mandarinquats (not sure if Indio or another) which were much, much sweeter and balanced.

Do you know the brix value of sweetness of the shatangju?

Not empirically, but some papers I dug up seem to suggest around 13º, which I think is comparable to the low end of dekopon?

a bit off topic, there are reports that grafting on Limonia accidissima can induce immediate flowering.
Unfortunately, I can't remember which paper I read this in.

It's mentioned in the Citrus Industry and quoted on the CRC page: "Citrus when grafted on the wood apple is sometimes forced promptly into bloom."

CCPP has US-802 as VI 1499, and should have budwood available at some point in the not-too-distant future, albeit not available for ordering as-yet.

How old was the keraji seedling when killed?

Lyn is unfortunately very difficult to deal with, in my experience. Phone may be best, but set your hopes good and low.

As someone also in the PNW, I'd note that some commercially available sudachi sold in our region seem to be rooted cuttings, which is interesting — and mine has survived winters that knocked out whatever citrange Four Winds was using some year.

I'm skeptical of flying dragon in the PNW, given what I understand as slower overall growth and deeper dormancy. It seems worthwhile to me to have a bit of die-back now and then in exchange for being able to make the most of the short growing season. That's a matter of speculative personal opinion, though! But I spoke to one nursery owner who was outraged and couldn't believe that his trees grafted onto flying dragon (he ordered them that way) had hardly grown in one season. He was sure that wasn't how it was supposed to be, I'm confident because his previous orders has been grafted onto some kind of citrange.

It's a bit like people imagining that lemons are better to grow in the PNW because they're sour and therefore need less ripening and must also be more cold tolerant. Everyone on this forum, of course, knows better.

This is the way! Good luck!!