why are my orange tree fruits kind of sour?
I planted orange tree seeds from sweet orange fruit. However, the resultant fruit produced from them is sour. What can I do to sweeten the next year's produce?
Certified GKH Gardening Expert
Fruit from a seed grown tree can take several years to mature. Cold temperatures also plays a huge role in fruit flavor.
Also make sure your letting the fruit ripen fully before picking.
Here is a link about Orange tree care.