Posted: 01/05/2017 at 19:43
The UK climate doesn't lend itself to production of citrus fruit - no matter what the seller says, it won't happen on a consistent basis.
If you purchase a Citrus which is flowering and fruiting, it has been raised in conditions which the average person cannot replicate the following season.
Sad but true. They may flower and produce the most gorgeous perfume and many people are quite happy just with that. You will get some fruit set but full size and ripe ? Unlikely.
Like so many other unsuitable plants, it is more a money earner for the GC than anything else.