hard dry satsumas

[keakar]

my satsumas are dry and hard about half way up from the bottom and those that aren't are not sweet at all. the tree looks nice and healthy, the fruits skin is thin and peels easy.

its a young tree about 5 yrs old and 4 ft tall making about 25-30 satsumas each year (planted in golden meadow)

I was wondering if this is from lack of watering or just something that happens sometimes?

its at some property I don't visit very often except for grass cutting so I kinda just left it to fend for itself and did nothing to it (no regular or even occasional watering at all) so I dont think it got as much water as I think it would have liked.

also, beyond the normal care instructions, is there anything you can do to help make the fruit sweeter or is it purely pot luck if its sweet or not?