I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
That may be dry soil, burn from overapplication of fertilizer or possibly a leaf blight from frequent wetting of the foliage. If you over fertilized drench the soil to wash away excess salt and then allow it to dry out quite a bit. Otherwise keep the soil just moist and it should recover.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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