At any stage of ripeness, the citrus I grow in my yard are harder to peel than those varieties normally are if I were to get them elsewhere, e.g., buy them at the store. I know some varieties are harder to peel than others, but I'm talking about comparing the same variety grown in my yard to that variety grown elsewhere. For example, the Valencia orange in my yard is harder peel than a Valencia I could buy. Same for my Page mandarin, and my Moro blood orange.
Anyone have any ideas about why this might be? It doesn't have to do with level of ripeness/maturity, though that certainly affects easy of peeling (easier on more mature fruit). Could it be something about the way I'm growing them, e.g., not enough of certain minors? Watering regime? General climate (cool coastal)?
Thanks.