Could it be a herbicide issue, roundup or a broadleaf weed killer? Possibly winter injury. Where do you live and how cold last winter? Too much fertilizer?

Where are you? What zone? In ground or in a pot? Which rootstock? How often do you water?

Iron!

I am in 9b It is growing in the ground. No idea what root stock I have. When it is not rainy season I water 2 to three times a week(very sandy soil) this time of year it rains every day I am not watering. I could look into Iron but I am pretty sure my soil has a high amount of iron. I dug a shallow well a few years back. the water table is at 7 feet deep. the water I pump out is so full of iron it will start to rust if you leave it in a cup for a few days. of course that does not mean I have iron in the first two feet.