Thank you for your question, Anne.  I believe the problem with your plant's leaves are caused by aphids, which live on the underside of the leaf, and suck the carbohydrates out of the cells, leaving this "crinkled" effect.  This Extension article has information about the pest, as well as control recommendations:  https://hgic.clemson.edu/factsheet/integrated-pest-management-i-p-m-for-aphids/

If not controlled, aphids can and will become pests of other plants in your garden, so getting rid of them early is the best course.  Once you have eliminated them, consider placing a water- , light- and air-permeable cover over your plants, so keep new ones out.  Good luck!

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