At first I just thought it was bad luck but now 4 separate pot plants have this issue, so I'm now thinking that I'm doing something wrong.
Firstly I had a lemon tree in a pot and it produced a lemon, but the lemon never ripened. It got pretty big, about fist sized, but is only partially yellow, and partially green. It has been in this state for over a year now and doesn't seem to be ripening. It has now even begun growing new fruits.
I also have a new blueberry plant which produced several dozen berries, a few of them ripened, but then the rest have stayed unripe for 4 months now. Not sure if this is related to it losing a few branches when the cat decided to sleep on it.
The other 2 plants are separate finger lime trees. They produced fruit which are tiny, like 1cm long, and they just never got bigger or riper.
What am I doing wrong, or is this something that is normal for fruit trees in their first year? Should I remove the fruit?