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!
I can't think of a deficiency that would cause that. I suspect with more warm days, adequate soil moisture and a little feeding with Miracle Gro they'll take off in time. Those plants like warm weather and plenty of sunlight.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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