First of all Are you a man. if so how old are you. I'll do the math and let you know. If you are a woman, just add 80 years (tree's life) to your age and if you expect to still be alive then, maybe the answer is no. A gentleman never asks a woman of her age.

Steve

I am a man, 24 years old. I'd say I got another 70 years. So yea I'm hoping my citrus doesn't die until it reaches at least 75 years old. Do you think a seed grown citrus would live that long in a pot?

Do you know what root stock yours is grafted to?

I have read some rootstocks have a shorter lifespan than others. I bought a grafted dwarf tree from a citrus nursery and it's on US 897. It supposedly has a lifespan of 10-15 years. I am 58 now, and by then, I probably won't be able to care for it as I do now so it didn't make a difference. I am referring to moving it inside and out for the winter.

Trees on own roots last a lot longer

I don't know about the rootstock. I'll have to ask the grower. When I become an old man I will probably grow it as a permanent houseplant at the sunniest spot in the house. Of course I will try to use a cart and carry it out and in for season changes but if I can't even do that anymore, it will just have to be a permanent houseplant.

Poncirusguy, thought so. I've been thinking about growing citrus from seed but have heard that plants don't become true and therefore fruits will vary and not be the exact same as we expected. Especially yuzu which is a hybrid so a hybrid cannot give birth to a hybrid can it?

Heruga, I am no expert on citrus from seed, but I have seen here some people mention that it depends on the type whether they are true from seed. Some grow true (key limes), while others do not. I am sure somebody has posted a list about this sometime on this forum.

It depends on the type of citrus, some have a very high chance of growing true from seeds (better than 90% chance)

Ok well how about yuzu and satsuma mandarin? Do they grow true from seed? Probably not right because Yuzu is a natural hybrid?

I am not sure about Yuzu, but Satsuma grow true to seed the vast majority of the time. Exact rate will depend on variety, but you have a very high chance of getting true to type as Satsumas are almost completely pollen sterile. I saw one study of a popular variety of Satsuma ( I forget which one) where out of over 200 viable seeds studied, only 3 were not true to type.

Yes, grafted trees (assuming they were grafted onto different variety rootstock, which is not very similar to the parent) will have substantially shorter lifespans than trees growing on their own roots.

This is all the more true for trees on dwarfing rootstock.

If you look at very old grafted trees, you can often see that the rootstock has bulged out at the graft union wider than the scion. The slightly differing growth rates catch up to the plant over time. There is always some degree of graft incompatibility, and that's what forces the tree to begin fruiting earlier in its lifespan by limiting its growth (limiting the amount of energy that gets diverted to growth early on).

Ok but can I expect my grafted citrus to live at least 40 years with me? Or am I pushing its limits?

Also you say grafted trees don't live as long but you said 'very old grafted trees'. Not trying to say you are contradicting yourself but if very old grafted trees do exist then isn't there hope that some grafted trees, even dwarfs can live as long as outliving us? I don't mean living for centuries and centuries but a quite a few decades would be nice.

yes