Does it get very hot on the porch after 4-5 p.m.? I wonder if because it was in shade in the nursery it can't handle bright sun or heat until it adjusts. The late afternoon sun is going to be hotter and brighter than early morning sun. Was it in a greenhouse at the nursery, or outside? If the leaves got burnt by too much sudden sun those crispy edges won't recover even if the plant as a whole is OK. Is there any chance you could post a picture?
to NGA.