Why does it say not to feed potted plants with food, i.e. apple, citrus trees.
Fertilizer I bought says do not use on potted plants, even though it is for citrus.
Certified GKH Gardening Expert
I'm not sure why it would say that; our articles recommend fertilizing potted fruit trees.
You might try to call the manufacturer or the shop where you bought the product and ask for more information.