posted 5 years ago
ooh, a controlled experiment! sounds fun. The citrus is very happy in pots. My lemons and kumquats fruit, and I was assured that the lemon could stay in the same pot forever and not need to go into bigger and bigger pots. I did ask for help from the orchard guy on how to prune it so it would do best in the pot (basically, topped it so it would force out branches, going from a whip to a very sad Charlie Brown christmas tree).
The blood orange had a lot of issues from aphids/ants (possibly because of heat stress) so I just put it in the ground this year and it is doing visibly much better, but I have seen a lot of citrus doing just fine in the pots. Take pics please!!
(i hear you on the weird microclimate. My metro area is in an ancient volcanic caldera type thing that for lack of a better image is like a massive toilet bowl concentrating all the humidity that comes up from the surrounding mountains that border the ocean. Everyone else in the area gets great sun and warmth, we are busy fighting an endless battle against mold.)
Edited to add: just thinking about it, the only citrus that has done poorly has been in large plastic pots. The citrus in terra cotta is much happier. My fig, also in terra cotta, seems to be dying, but I'll leave that for another day.)